It's not that I am uncomfortable, it's just that 50% of the time there is a wipe. When you wipe, you lose the time savings you would've gained by doing big pulls. Slow and steady wins the race.
Even if we don't wipe, you typically just shaving 5-7 minutes off the run. If being in a dungeon for additional 5 is that painful, I'd have to ask why you are even playing the game if you hate that much?
If the time difference between a speed run and normal run was say a 20 minute run vs a 60 minute run, I'd completely agree, but it's not. The difference is negligible.