It may not be the common view, but I think that what you are witnessing is, to a certain extent, "deliberate".
Every framework has a "sponsor". Every strong "sponsor" either has a vested interest in the web, or, a vested interest in some other platform with which the web competes.
The importance and power of the web are obvious. So, it is a dance. "Embrace, extend and extinguish". And, hop, here we go again.
What do you mean by "deliberate"? It sounds like you are hinting at some kind of bad faith or at least perverse incentives but I can't tell what exactly.
Every framework has a "sponsor". Every strong "sponsor" either has a vested interest in the web, or, a vested interest in some other platform with which the web competes.
The importance and power of the web are obvious. So, it is a dance. "Embrace, extend and extinguish". And, hop, here we go again.