> No such thing is happening ...

You're asserting that there hasn't been a significant management and hiring shift in engineering departments over the past 5 years, moving away from what became a web monoculture in the post-90s environment, from roughly 2000-2005?

> That doesn't even make sense as proprietary application platforms have always owned the application market.

So you admit the web is ill-suited to serve as an application platform, and is failing to acquire traction in that space despite considerable but ill-focused efforts to the contrary?