Sure. Scientology probably has non-profits, too. I am not saying MIRI is anything like Scientology, merely that it isn't enough to just determine legal status and call it a day, we have to look at the type of thing the non-profit is.
MIRI is a research group. They call themselves an institute, but they aren't, really. Institutes are large. They are working on some neat theory stuff (from what Benja/EY explained to me) somewhat outside the mainstream. Which is great! They have some grant funding, actually, last I checked. Which is also great!
They are probably not yet financially secure to stop asking for money, which is also ok.
I think all I am saying is, in my view the success condition is they "achieve orbit" and stop asking, because basically what they are working on is considered sufficiently useful research that they can operate like a regular research group. If they never stop asking I think that's a bit weird, because either their direction isn't perceived good and they can't get enough funding bandwidth without donations, or they do have enough bandwidth but want more revenue anyways, which I personally would find super weird and unsavory.
They are probably not yet financially secure to stop asking for money, which is also ok.
Who is? Last I checked, Harvard was still asking alums for donations, which suggests to me that asking is driven by getting money more than it's driven by needing money.
DeepMind's go AI, called AlphaGo, has beaten the European champion with a score of 5-0. A match against top ranked human, Lee Se-dol, is scheduled for March.