The problem is that all of the spyware says exactly the same thing. If the API exists, ordinary users are going to be asked to make huge security decisions with no effective way to tell whether the vendor (or the new owner who just bought it) is being honest.
> I'm sympathetic to concerns about people who don't know what they're doing, but if I'm a Safari user, I have to value keeping myself safe first.
This change still means that Firefox will have better adblocking and privacy tools than Safari. It's a tradeoff -- and if I'm a user that's already conservative about granting extensions permissions, I don't see how I get any benefits from this. I only get the downsides in the form of less effective blockers.
The problem is that all of the spyware says exactly the same thing. If the API exists, ordinary users are going to be asked to make huge security decisions with no effective way to tell whether the vendor (or the new owner who just bought it) is being honest.