The article seemed to highlight the inconsistencies or errors in the plugin review process which puts undue burden on developers trying to add value to the ecosystem. It was not about the differences in Manifest v2/3 and the issues with Chrome, though this was mentioned and is the reason why the 'Lite' version of uBlock Origin exists in the first place.

tl;dr - continue using Firefox and installing uBlock Origin. If you develop Firefox plugins for distribution through their official channel beware the review process I guess.