Bosses vs map mobs difficulty discrepancy

Really really like most of what I see so far. good graphics, fun- to a point, and even interesting abilities per class.... passives feel kind of flat and many look alike in power, but will need more levels to figure all that out.

The true issue I have is that sadly, even being over-leveled by more than 3 levels in the campaign (on average on a map) and with all yellow gear (gambled for since it doesn't seem to drop) the bosses just are waaaay too hard. I see lots of complaints on the wolf, and the Tusk bosses -- quite a few others --- makes the game nearly unplayable after a point since you hit a gear wall (that doesn't seem to drop) or you just cant do enough damage to get by them and it becomes a slogfest, penalized by death to the point of frustration.

GGG please tone down the boss fights- or have a toggle, slider, or something to make it a tad bit less repetitive and frustrating since they seem VERY different than the rest of the map's mobs. Those mobs are a good feel, but if the level indicator is right, I need 5-10 more levels to do certain bosses at the end of a campaign map (The Tusk quest boss is a good example) and its like they ported in somehow from an endgame map :O