Thread:TheHadouCyberspaceWitch/@comment-34066793-20180130071901/@comment-32658416-20180202054743

Majin Buu was called extra-dimensional by 16. That's the only reason that they're considered 4D. Other beings being 4D doesn't make it common enough to say that repeating it at a later time means he's 5D when most characters in the verse are still 5D.