From Reddit: NO level sync when entering a dungeon with less that required players!

[Gilthas]

Probably not. When you have people with complaints about content nerfs and how they appreciate more difficult content, this beats them to any argument.

Lol, the people that complain about content nerfs will be taking the path of least resistance just like the "filthy" casuals do.

This will be nice for me to finally get a baby opo-opo and Mummy's little Mummy.

A special mount for completing all past content on lowest sync would be epic!!!

*shrug*

This is something that most players already did when dungeons were new. Not exactly something special.