Innovative game+innovative hardware =
I just haven't really seen good "innovation" with this new hardware outside of like the WM+. I'll admit that games that Red Steel 2 and, yes, Skyward Sword do show a side of gaming that could not exist without the hardware but at this point people are more focused on shoehorning every aspect to new hardware than actually emphasizing on strong points and avoiding weak points.
I'll use Skyward Sword as an example. Sword control for the game is innovative. It's basically impossible with standard controls (well, possible but incredibly shitty). It works well for that. But they kind start shitting things up for putting it on "everything". It's not like they're terrible and break the game (although some of the controls are just downright terrible), but they basically shout "Hey, this is why people don't like motion controls!" to the player.
Pretty much all the Wii ports suffered from this. I could give a pass to gimped features and poor graphics but why would I play a game that forces me to use motion controls which are, in this case, highly inferior? It's the big trade off with "innovative hardware". You get some games that truly are innovative with the hardware but you overwhelmingly get more games that end up getting shit on by the hardware.
Oh, and rail shooters also benefited from the Wii, I'll give it that. Finally kinda revitalized the genre and brought it to the household without having to buy goddamn Duck Hunt guns. HotD Overkill, RE: Darkside/Umbrella Chronicles, Dead Space Extraction, etc etc. I'll at least tip my hat to the Wii for that, thank you.
I hate to bring up the Vita but at least a game like Golden Abyss took it in the right direction. You can play the game entirely with your standard set of buttons or you can use heavy amounts of touch controls. Or you can mix and match to use what's best for what.
The Kinect is probably the biggest victim of this whole issue. It alienated itself so much from traditional controls that there's no way for an effective middle ground. Plus it took away so many basic things that work the best in that situation (like analog sticks) that most of the games you're playing for it are heavily constricted. Like how many Kinect games are on rails or party games? How can you make an effective, say, platformer when you can't even control someone effectively. Now if you could like use a combination of the controller and the Kinect then that'd be cool. Like hold the controller in one hand only for analog control and then map combat or whatever to gestures and stuff.
I have a hardcore love for gaming but I get turned off by hardcore play-styles. Gaming needs to turn into a medium that everyone can enjoy just as easy as Television, Movies, Books and Music. The GameCube controller was a great start by having all of the buttons on that controller feel different while having close to the same number of buttons found on other controllers. The Wii Remote and Nunchuck took it to the next level by giving you just enough buttons and coupling traditional gameplay with natural movements. While I see the Wii-U tablet as a small step back, I still believe in Nintendo's path of simplifying the entry level for gaming for the mass audience. I don't want to have to waste time thinking about which button is which (I.E. DualShock 3 controller) I just want to have fun with the game. Motion controls are on the right track. Go play some Skyward Sword if you think I'm wrong
I don't think gaming needs a "medium". It's like saying they need to make the hoop larger for basketball so everyone can play. It's a hobby that some people like and others don't. Some people simply can't stand or even comprehend playing Magic the Gathering but they don't make the rules simpler for a "broader audience". It's not like gaming was in such decline that it needed a broader audience to succeed. The PS2 was wildly successful. It still sits at the top of the total sales chart without even caring for large amounts of casual appeal. It's remembered pretty much purely for its games that didn't appeal to casuals. Even then, they've had broader appeal for years, it's called "easy mode".
I also don't think the Wii really brought casual appeal to the people. It was advertised well so many people got it but I know families who wouldn't touch an Xbox that own a Wii and lemme say, it's an effective dust magnet. Hell it's not even remembered for its "casual" games. Go up to any Wii diehard and ask them what good games are for the system and they'll say "Super Mario Galaxy and its sequel, Twilight Princess, Skyward Sword, Donkey Kong Country Returns, etc". Games that only have casual appeal in their bright graphics and their ineffective "Super Guide" system which I still believe is completely useless. What fun is it to suck at a game so bad that you basically have someone do it for you? It's not like a puzzle where you can figure out what goes where by watching them play it, it's a game based on skill. You can't just learn to have quicker reaction times by watching someone good do the level.
tl;dr: Innovative hardware is only good if people realize it's not good for everything and use it towards actual innovation... Which all depends on the software so innovative hardware is only innovative because of software. So innovative software > innovative hardware by a hundred times.