Microsoft does not invest in projects that are unlikely to succeed or are led by amateurs. Vitalik is young, he has the capacity to learn. Ethereum is as revolutionary to cryptocurrency as web was to the internet.
True but their experiments with Ethereum-based projects are nowhere near on that scale either (nor is Microsoft "investing in Ethereum", either the coin or the development group, as far as I know). It is just one of many things that big tech companies like Microsoft experiment with, knowing that some will pan out, some won't.
It is well known that every major bank and every major tech company has people looking at cryptocurrency and blockchains at this point, but that doesn't mean they are making big bets on it. Most are not.
Yeah, the reason why I asked about Ethereum and Ripple news stories saying Microsoft is "investing" in it for Azure, is because I was talking to my cousin earlier this week about it who works pretty high up in Microsoft and when I asked him about Ethereum, he had to really stop and think about it before realizing that they were working with things from ethereum, but not much. Microsoft is more worried at what Azure is going to do and cloud data bases before they start worrying about cryptos (atleast that's what it seemed like when talking about it to my cousin).