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

[Yuri_Hyuga]

Wouldn't that be redundant?...

Read: "...of the dungeon sets which aren't..," there are dungeon sets like the i80 from Lost City or i90 which still aren't dyeable, even through crafting means.

1 Minion & 1 Mount for such a feat is not much to ask for too.

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

Hardly, most players have been incredibly well beyond the minimum specs of lvl. 50 dungeons since 2.1~.

Few players actually strip their gear just for the sake of it, let alone everyone in a party.

If speaking of leveling dungeons, sure there are sometimes where a player goes in at bare-minimum, but again--every other person likely isn't.

They can always make a harsh time-trial part of the achievement(s) too, so players in bare gear really have to pressure progress.