That PvP comparison was horrible. PvP in D1 was never unbalanced like that. Having a god roll weapon didn't make you unbeatable. It just gave you a slight edge. The only case which the edge was a little too high was with shotguns but even then out playing your opponent would still lead to winning that ecounter more times than not. Everybody just liked to blame every lost gunfight on a god roll weapon so they didn't have to admit to themselves that they got outplayed.