There was already talk of using it in Safari to allow users to create custom filters to persistently block portions of a given website.
Sort of like using ChatGPT to help figure out how to use FFmpeg to accomplish a task from the command prompt, but used to create the equivalent of greasemonkey scripts.
In my mind there is a big difference between the browser using it for features and letting any random website burn my electricity on a new scale for crap I never agreed to.