I think I generally agree with all that. One good side effect is I think this will be the push that gets Linux a bit more mainstream*. It's pretty easy to sideload Linux onto most Chromebooks, so I think a good chunk of kids that like tinkering with stuff are going to try it out, more so than the past. ChromeOS is a lot more restrictive than windows, so there's a bigger incentive to get around it.
emphasis on a bit. Frankly I don't think I see a world where Linux has a proper foothold in the mainstream unfortunately.