Even the Saturn could play Music CDs which neither PS4 or XO can to this day which is awkward because it should be playable since day-one.
I don't mind the Wii U not being able to play because I use it for games not media.
So let me get this straight. You're criticising the the PS4 and XBOne for not being able to do X and saying it doesn't matter the WiiU doesn't do the same X since
you use it for games? Good luck with that. The WiiU is being advertised as a media box just like the rest of them. Both officially (retailers and ads) as well as unofficially (users, reviews, etc).
Also at the previous comment of the PS4 not having games coming out, you're wrong. It has quite a few notable games coming out in 2014. Just like the XBOne. Both games from first party developers and third party developers. If your only critique for Sony's and Microsoft's consoles is lack of games, you could just as well kill the WiiU. It's in the same situation or even, according to some, in a worse situation after about a year more in the market.
ps. I've got a PS4, but not a WiiU or XBOne. Still I've played more than 200 hours, probably closer to 300 hours on the WiiU. Probably more titles than the average WiiU owner due to a friend doing reviews for one of my country's largest gaming shows (TV, online, magazine, etc).
Being critical is not a bad thing. If it's baseless critique, then it's a completely different matter. One of the reasons I see merit in many people here. Not just baseless bashing (albeit bashing does happen too). Opinions have some kind of factual base for them.
pps. CD =/= DVD =/= BD. You don't call a bicycle a car even though it's meant for moving from a place to another :3