Considering that these guys go through giant doors or you fight in giant rooms having to previously walk through a tiny door would be weird seeing them walk around. And if I can solo these dudes without cheesing I don't think they'd be too much of a hassle with 16 people shooting at them. Fun, yeah it would be, but only if you got drops as rewards for it otherwise it's just some giant stumbling oof that no one wants to waste time killing XD