Because he added the rules in 2022... before that there are a lot of insults without any action against it (that lead him to add the rule and explicit announced it).
Greetings to all our members and readers, I hope everyone is enjoying all the new releases and have plenty to play over the winter. Over the last few weeks, I have received many messages over moderation and issues surrounding how issues have been handled. I looked into the matters and have...
icon-era.com
TGA 2024 added the rule to allow DLCs.
Maybe if they added the rule in years before when no DLC was nominated to GOTY... but they added the rule just to allow a DLC to be nominated.
They basically added the rule to break their own rules because it was leaked that a DLC was about to be nominated before the public announcement.... so they fast added the rule to try to counter backslash.