Abyssal Depths Rare Mobs

Do the Abyssal Depths rare mobs scale to the map monster level? I am running Tier 3 maps and the Abyssal rares are twice as tanky as the other rares on the map?

I ran into a couple with extra energy shield that were harder to kill than act bosses lol.

I am not sure if this is intended but its a little frustrating.