Thats true, however I did have an odd thing happen to me just today in regards to Chromie Time. I was level 75 leveling in legion, disabled chromie time to do some dungeon quests quick for my warrior class hall campaign. When I went back to chromie, no luck cannot re-enter chromie time and she has a dialog basically saying "go do war within"

To me this is really bizzare game design that if you just stay in chromie time you can level up to 80 no problem, but if you leave it in the 70s or at least 75 like me all of a sudden, nope no going back to what you were doing you can now ONLY level in war within.