Earlier quoted context omitted.
It's not against the rules, but it is hostile to the web. Forking the web because a company is big enough to do so may sound just dandy to you, but to the rest of us who have spent decades working on interoperability it's a big middle finger.
Allowing Apple to have a veto on which features are allowed to be added to a browser is even more hostile to the web.
The problem with all of these new specifications is that Google can’t convince anybody to do this, no matter how much money they throw at them. That’s not an Apple veto stopping these things from becoming standards, that’s Google pushing shitty specs.