Well I finished the game as a Siren with a Fox mod (plague at the end I think)... they really hate fire weapon users for the latter half of the game.
Yeah, I think they maybe overcompensated for how comparatively awesome (or at least useful) fire was in BL1's campaign. I've found that TVH starts the fire-hate from the word go -- a third of the normal Psychos so far have been replaced by an armored, SuperBad-HP variant.
OTOH, I wouldn't have minded a nice fire weapon for fighting TVH Midge-Mong, who killed me six or seven times before I got lucky and had him get stuck on one of the balconies. At which point he ate all 8 of my 5500x10 fuseless MIRV grenades.