It's not a surprise we feel unease, and to hope that Microsoft is actually going in a direction that aligns with those values, instead of simply twisting them for it's own continued success - that's being a bit naive.
We'll all see what happens, but honestly, I wish their was one web platform that existed out there, that could stay stable in it's philosophy, and not succumb to embracing the chaos invoked through economic success.
There are plenty of examples that stick to the core philosophy of open source software and open ideas, but there are rarely examples that manage to become extremely successful and maintain that success without drowning in the confusion created through their own influence.