At least with C3 and Chrome's new feature for saving offline would make it so you would only really need a wrapper for iOS and consoles.
Which IMO iOS itself is developer hell and not really a big market compared to android, which allows browsers and html5 technology to progress rather than rely on Safari to be crappy or other devs to make a less crappy wrapper. Yeah iOS devices usually just work, but they're usually really limited too. It's just the consequence of Apple's direction for the platform. Even though they're anti-flash they seem to be slow to adopt many features, if they work properly even after adopting.
The rest of those are just those where you can have a wrapper or play via browser html5. I remember back when the WiiU came out that the Youtube webpage in their browser ran faster than the Youtube app they had due to HTML 5 technology. With the Switch basically being a tablet maybe we'll be able to see easy ports to that as well just like android. (Unless nintendo worked with nvidia to built a unique ecosystem from the ground up, but it looks like it could just be a super modified android/linux OS.)
The problem with the console browsers on those devices is that they're hardly optimized and updated, much like iOS's safari. So even if the games half work there's no real hope in having them completely work without issue.
Then you have to rely on other people porting browser technology and relying on them to optimize it for a different hardware platform, usually closed source or slowly developed. The slow progress in making things actually work like a real browser through the wrappers, witch each wrapper having their own unique subset of features, rather than them all working together to make a system with many features and allowing the person wrapping it to choose what to use.
All of this is when HTML5 was just breaking the mold too, so only recently have we seen better results from said wrappers due to the demand caused by C2 (and other html5 dev tools) and the wrappers not being adequate. They're still not as good as the desktop browsers or even the desktop wrappers (nw.js // electron).
But hey, at least you won't need a wrapper for Android once the chrome feature is out of beta