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.
How can you defend Safari rendering broken sites for long periods due to lack of frequent updates as a good thing?
The ever current adage of distortion field applies here.
Just like Safari not having webgpu was touted as a feature and now that it has support, webgpu suddenly turned into a feature. Apple can do no wrong to some. Whatever they do is a feature. And if they don't do, it's a feature too.