I think that Microsoft is money-focused, not developer-focused.
Correct me if I'm wrong, but the mass of open-source developers vastly outweighs Microsoft.
These "developer tools" are the property of Microsoft. Which suggests an obvious and worrying path in Github's future. Tell me that I'm wrong.
Everybody and his dog has a cloud computing service these days.
Do you think Github wasn't "money focused"? I'm sure you felt mighty smart making that comment, but businesses are by default focused on making money. HOW you make the money varies, but the final goal doesn't.
I guess nothing, it brings nothing to the table.