I recently asked for help for my Eye of A. M+7 key over the group finder feature. I found a very cool group that boosted me, and they did the dungeon in a way that I personally had never seen before. After reaching 100% by pulling enough mobs around Serpentrix they asked me to follow them jumping "up" from the ship wreck, near King Deepbeard, this cut a whole usual path of the dungeon and gave us a huge time advantage.
My question is, are we talking about bug abusing or this is borderline in your opinion? I was not able to jump up, but I used Shadowstep and I was fine, later on I tried to jump up myself and I felt the jump is way too long to be done (without knowing how to...)
Sorry for this stupid question, but I feel that those super uber M+ time records that I see are all based on some sort of cheese like this.