The thinking is that when something says it's an adblocker, it has one job - blocking ads. ABP doesn't do that, hiding behind the euphemism 'acceptable ads'. It would be ok if they promote it as a 'selective blocker' instead of 'adblocker'. It would also be ok if they say adblocker and the acc. ads thingy is opt-in. If Mozilla did something to highlight something that had one job to do and did it, I'm thankful.

P.S: Ublock Origin is not just an adblocker. It can block various types of content.