Honestly I feel they were all very obviously April Fools pranks, but also poorly implemented.
Forum announcement leading to a rick roll, just hovering over the link gave a youtube link...
No support for ATS made no sense as TMP events regularly happen on ATS.
Upside down role names, I didn't notice until mentioned, but the only explanation would be if that was done on purpose via TMP.
C-D road blockage, just a map change, nothing TMP hasn't done before, ironically probably a solution to 50%+ of 'rec ban' reports.
Funny music, just outright annoying, and obvious once someone realises the date.
There were a lot of questions within the discord support channel and questions on the forum, so clearly the 'jokes' weren't all that well thought out.
As always for TMP, relatively good ideas, but poorly implemented.