But Brave does, as mentioned before, have their own built-in adblocker (based in part on uBlock Origin), which doesn't depend on extension features. uBlock Orig

But Brave does, as mentioned before, have their own built-in adblocker (based in part on uBlock Origin), which doesn't depend on extension features. uBlock Origin does still have some additional functionality that the built-in "Shields" don't, but mostly it's not dissimilar. So, given that an ad-blocking experience on Brave doesn't depend on extensions entirely in the first place, I would think that would be a business/econ reason why they may not want to divert lots of resources into maintaining v2. (Not sure where 'semantics' came from in the first place here.)