It’s the most of the time that’s the issue. Eg it’s taken me since December 22 and 2 topics to prove that the Zen Driver has an update bug in it:
Had I been able to roll back drivers, it would have been IMO easier to diagnose.
And Aeotec Shutters are still broken in home kit many months after being reported - in not sure if that is a driver issue specifically, but it’s still frustrating.
I get the architectural change argument, but in the long run it would enable Hubitat to be more responsive.
Community driver updates via HPM are a great example. When ppl report bugs in the Weather Underground driver that I maintain, I can fix them and make them available very quickly.