If you avoid fighting mobs by running behind 'aggro by sight monsters' or walk pass 'aggro by sound monsters' is what I call game mechanic.
But sac run mobs to boss is not what call game mechanic.
FF14 1.0, speed run and open gate which make monster gone is what call game mechanic.
FF11, sleep/invi run pass mobs is what call game mechanic.

I'd say Ruprect just don't argue with them and ignore, wait until servers are stabled and see how SE handle their ban-hammer like FF11.