What is he known for? Glancing at his github he seems very oriented around windows (which supports your point), but I wouldn't even know what to look for beyond that.
The .NET evangelist of that generation have been more than fine. No bullshit, no false promises, no lies, etc. Focused on communicating the change towards Linux, the performance work and so much more.
Scott is well connected in the dev and azure divisions. He has headlined dev conferences etc. But as an evangelist he only carries information. This change will not happen because of him but maybe with him. But I do not believe so. To much money at risk.
Yeah, correct. There is no reason to believe he can change that for Windows. But he will know where to address it really. But it will not change. Too much money at risk