I don't mean unbalanced in terms of gameplay, I mean unbalanced in terms of what's available.
As an example, I am finding a lot of rare magic weapons which are suitable for fighters. However, I'm finding very few simple and/or finesse melee weapons which are magical of any sort.
Another example is the game gives you a plethora of different magical amulets, but few rings. I haven't bought a single amulet but I ended up with two more than active party members. However, aside from Crusher's Ring, I have not seen a single magical ring yet - even at a vendor.