Will accessibility tools that rely on automating input to the browser cause it to become untrusted? Will it affect extensions? The spec does currently specify a carveout for browser modifications and extensions, but those can make automating interactions with a website trivial. So, either the spec is useless or restrictions will eventually be applied there too.
They didn’t blow any whistles, the proposal was public and lots of people spoke out against it already.
Besides, I like Vivaldi, but they’re part of the problem.
The only reason this discussion is happening is because everyone and their grandma decided it’s a great idea to re-skin a browser built by an ad-company and expect them not to abuse their position.