Firstly it hasn’t actually happened yet, I guess you fell for the misleading windowscentral headline. Secondly it’s not really kneecapped, but required them to rewrite, which the uBO author decided not to do (as a statement I guess). Other ad blockers however have made new MV3 compatible versions that are comparable to the MV2 ones, so it’s clearly possible. Also don’t forget there are other chromium browsers besides chrome, if you use Brave you don’t even need to install an ad blocker because it’s built in.