It’s in the same situation as getting grenade’ed and getting head shotted with a sniper rifle at low health.
Nades, sniper rifles, shotguns, and Melee’s are all power weapons they instantly decrease the health bar with a large amount.
So why not if someone is 80 or below, they will get gibbed by the shotgun if they are shot up and the damage exceeds that amount close range or be gibbed by a melee weapon with the heavy attack?
Fair game is it not?
Well, a knife swing on a downed player is already a gib no matter what their gib health pool is. I don’t care what you do to that, cause it is a trivial change.
As far as shotguns, that would be a… weird change… Don’t think I approve of that change.
Technically they can. The reason why the sniper rifles can gib players 50hp and below is because downed players have 100hp (same reason explosives can big 80hp and below). The problem is that shotguns and melee don’t do enough damage drain that 100 extra hp (the sword could with chopped but only on someone with 3hp left).