Run past mobs and aoe screen at end

What gating mechanic would prevent this from happening? Just leave the mobs behind since there is no reason to kill them now.

Get some archers or necros and they will never catch up.

End-game wise, Whats the benefit to just running past everything? Generally people kill white/blues/rares to get loot/exp because bosses drop crap all. This is a loot based game after all.

Highest tier.

Will get plenty of loot at the end anyways (maybe weighted on mine lvl). Its like the temple, its not worth it to look and path it out, finding that door. Just kill everything and reset.

Can gear up in a day or two now.

These mechanics are great for ssf, but why spend 15mins doing a mine (searching for chests) when you can do 3 in that time by rushing?

In order for this league to work, bosses wont be able to drop the uniques. Otherwise there is no point in chest hunting for most ppl. Which makes no sense