Yeah, seems like this is a renaming announcement? I thought pyside was relatively well supported by the Qt foundation given how many applications depend on it.
Bit of history: Back when Nokia owned Qt and tried to make it their mobile sdk, Python was in their vision as The high level application programming language. To accomplish that and provide unified licensing, they attempted to buy PyQt, but ultimately couldn't get into agreement with Riverside. So Nokia said, fuck it, we'll make our own with blackjack and hookers, and PySide was born. When Nokia then shifted to Microsofts bed, PySide project mostly died out.
Now it seems that Qt company has picked up the PySide project again and as part of the revival are rebranding from PySide2 to Qt for Python, which seems sensible both to avoid the baggage associated with the PySide name and make the branding bit more clear; the PySide name wasn't really that great to begin with.
[1]: https://github.com/mherrmann/fbs