I agree, why the chapter skip? They redid the translations FlorieJane did earlier, so I was expecting them to continue redoing them. I'm a bit apprehensive to continue this series now since I need to read the other translation to continue, and I've heard the quality of theirs leaves a lot to be desired. I'll give it a little read to see if the quality of FlorieJane translations are as bad as people say, but we'll just have to see.
EDIT: Alright, seems like FlorieJane's translations aren't great, but they're not nearly as bad as people made them out to be. I've read much, MUCH worse before. I still would've preferred if MangaSushi had redone all the other chapters since their translation quality is much higher, but it's not like it's unreadable.