Note: anyone that is not an expert at reverting things should not try to revert this.
In this case someone decided to waste a lot of time to setup something relatively tricky to revert. It is not standard case where simply reverting with common tools in standard configuration will work.
I tried to help with reverting and only made things worse. Sorry.
If you are not fully understanding what edits exactly did, do not revert. If you think you do - you may be making the same mistake as me and you should recheck.
If you revert changeset by changeset, without filtering for elements, without checking all changesets - you are definitely making things worse.
(maybe helping in some way is useful, I hope that someone from DWG will post here if that applies)
If anything they effectively behave as pro-Russia troll (pointlessly damaging stuff while insulting something is effectively making other side seem worse). No idea what they actually intended, and there is no point in caring about this.