That flaw applies to their console regardless of who's fault it is. At the end of the day, it's Nintendo's console, not Nvidia's. If their security was as near flawless as you claimed it to be, then the hardware exploit wouldn't be much of an issue for Nintendo.That's because of a flaw in nvidia's security, not Ninty's
We all know how the hardware exploit works by now. No need to go on a lengthy explanation.For the older Switch units, anyway. If NVIDIA had patched up their vulnerability and also Nintendo not screwing up with a couple of designs of the Switch (like the pins on the right Joy-Con rails that helped in giving easier access to RCM), then it'd be extremely tough for many Switch hacking devs to break through and provide easy support for end-users. Otherwise, they did hugely step up the security on the Switch compared to other Nintendo consoles. And usually the unfortunate part for Nintendo consoles is that there's a lot more interest in people wanting to hack the consoles compared to Sony or Microsoft.
iirc, newer units have been patched for a couple of things like being able to send payloads through the USB-C port which is what a lot of people do after entering into RCM. And there's no public way (from what I can remember) to send a payload to the Switch when it's in RCM for those newer units. So those with a patched Switch wanting to hack are kinda SOL for the meantime.
In short, the Switch on the software side has impressive security, but on the hardware side is where they screwed up on.
To say that there isn't enough interest in hacking Sony and Microsoft consoles is absurd. The hacking scenes on their previous consoles, specifically those on the Sony side of things, show that there's more than enough interest in these areas. Heck, there's still interest in their current-gen consoles.
The PS4 has had a jailbreak available for quite some time, and newer firmwares are even exploitable as well. It's just that those who have the exploits either don't want to kill the console or reveal how to patch it. It's had a rocky start with homebrew, but more interesting things keep popping up for it.
As for the Xbox One, it's been known to be the toughest nut to crack. People who are interested in developing homebrew for it don't really even need to hack it since MS gave them alternatives, so trying to hack it would be a waste of time. That's why retroarch is able to be worked on for it.
There's a number of people still interested in working with non-Nintendo consoles. Saying otherwise is just ignorant.