speed running has always been a thing. I'm glad ANET made some changes to how dungeons run and work so that the old mentality of "unless your a full berzerker warrior or a portal mesmer your not allowed to play" is finally gone.
I know we tend to take short cuts in a few parts, but I'm glad we don't take shortcuts out of every part in every path because it takes the enjoyment out of the dungeon itself.
Ex. stacking for Lieutenant Kholer in AC P1-P3 vs spreading out and fighting it the way its meant to be.