Maybe there’s a different post about there being free moves off Remulos to Arugal, but it’s not in the original announcement of free transfers HERE.
There are free transfers TO your server in that list.
Was there a different announcement that stated there were free transfers off your server that I’m missing?
Otherwise, either it wasn’t offered to begin with, Blizz opened them by accident, or Blizzard shut them down intentionally for whatever reason. It’s possible a blue here might be able to shed some light, but at the end of the day, it looks like they were originally trying to move people TO that server and not off of it.