Very much agreed. And I also agree that, at least in a corporate context, training for a React stack would also be expensive, potentially more so.
And there are plenty of people out there who have no problem picking up Angular.
Looking at job market data alone, though, Angular commands a premium to .NET-only. Anecdotally, folks who feel comfortable with .NET, but who find eg; React+Redux bewildering, also feel constantly confused by Angular and can get themselves into trouble without close guidance.