You're 100% correct though. Sponsors are exactly (long) ads and I have no personal problem skipping them after paying $17 a month for premium. If a creator has a problem with that they should take it up with Google. I'm paying for ad free, and that's what I expect.
If sponsorblock breaks I will be reevaluating my premium sub. Not that it will have a meaningful impact on Google or anything, but I'm just fucking sick of ads and am not going to pay to remove them and still get ads delivered to me.