Stupidest argument ever for level sync. There is no difference if a max level person kills it or a guild group kills it. Other groups have to do the same things wait or find another instance. Prior to level stink, I had no issue finding WB up outside of the conquest ones and when I go to conquest one I run into a guild group there.
All you are doing is making up some BS thing that level sync fixes when in reality it does NOTHING to solve the issue.