Petty bureaucrats misusing their privileges to ban key contributors from FOSS projects is a recurring tale I'm afraid. I've seen this happen with Thunderbird, and later also with LibreOffice (well, The Document Foundation to be exact). It is ridiculous and frustrating, especially since most other contributors and users remain passive and let these things just happen (even when they don't agree), typically because they don't want to put in the effort, or to risk their cordial relations with those in power. I very much sympathize with your predicament.