I can't speak for Azure specifically, but I've been hearing variations on this theme since at least 2001 or so, when VB diehards thought the switch to .NET was going to be a failure.
...this is why I'm bullish on MS/Azure but steering clear of Blazor. I love C# but don't want to couple my front end dev to it, despite the allure of "right once run everywhere" that's being pushed (once again)