I know it's fashionable to forcefully shove the same pet peeves about Chromium into any topic even loosely related, but here I'm talking about Safari webcompat fixes, bug fixes, and improvements having very long delays between being written and landing in customers' hands. I would make the same argument if Chrome never existed. Thank you for presenting the 10,001st reissue of this "controversial take".
The behaviour of entities that WebKit is ostensibly told to be compatible with isn't a "loosely related" topic, it's precisely on-point. It's certainly no less on-point than nebulous criticisms of Apple for assumed NIH syndrome or marketing priorities. You criticise Apple for not having a rapid release schedule; I am criticising the very notion of rapid release schedules (other than security patches).
The web platform doesn't need to move so fast.