Yes, it is true ! With the inflated hit points they(Dwarven Barbarians) have available, the developers have been forced to overcompensate by increasing monster hit points and armour classes to non-traditional D&D levels. This is the root of ALL nerfs. (j/k but I want to see what sort of responses this gets. flame away, but be nice about it)
Again, I'm not serious...I personally feel the balance exists between ALL classes & that all the arguments are due to playstyle.