This will do good for the community and reduce bad experiences from people that just don't understand what endgame gear progression is.

Ill explain it in a very simple term everyone can understand.

This is literally the same exact mechanic as locking out a level 15 from a level 40 dungeon...they did this as you were leveling up...When you hit 50 your level doesn't matter but what gear you wear does dictate what you would be able to handle just as you being level 15 dictates that you would be able to run the level 15 and level 10 dungeons...while getting murdered in the level 20 dungeon.

Too many people don't understand this...and while yes its possible to get into a group that's good enough to carry you...as would teaming up with 3 level 40s and running the level 35 dungeon while you are level 15...but they don't allow that...and for a reason...that's all this is.