Earlier quoted context omitted.
Their apis only support declarative static blocking lists. No heuristics, right click to block, IAB ad size detection, etc. Similar to what chrome plans to do with manifest v3. Advertisers are already figuring out how to get around that. CNAME cloacking, proxying with same domain, etc.
But on the other hand, it prevents malicious extensions from exfiltrating your browsing data.
This idea of removing usability in the name of safety has gone way, way too far. It was crap when Mozilla did it, it's crap when Apple does it.