I think you have simply been lucky, the full story is that uBlock Origin and Youtube have been tying to outpatch the other, with uBlock rolling out a bypass to the filters every one-two days since late October (https://github.com/stephenhawk8054/misc/commits/main/yt-fix....).

Depending on if you've set up uBlock to auto-update and when you've watched youtube relative to when the block filters got updated you might just not have been hit with the latest detectors while they were active. Personally I know I got the "accept ads or leave" modal with firefox + uBlock, locking me out completely on one of my devices.