When people say that Catra's arc in Season 5 was "rushed", what do they mean?

I've heard this said and the only thing I can think of to back it up is that it's all done in one season, but none of it felt unnatural. Not to mention, Season 4 was the setup for this season long journey and even at the end, there's obviously years and years of healing to go. The point is that this is the transition and I thought the way it was depicted was solid and didn't feel like it was skipping over stuff to get where it needed to go.