Perhaps the devs overlooked this, or simply don't care, but the transmuting nerf hurts archers more than anyone else. Sure, archers already had a (somewhat) easier time dealing with metal- and metal + alignment-based DR, but they still required a transmuter to deal with DR/bludgeoning and DR/slashing.
Now archers no longer have that option.
So, why don't we get some slashing and bludgeoning arrows introduced? They do exist somewhere in the PnP rules, so we're not going over new territory. But if they do get implemented, please do so across the board. That is, with standard, masterwork, +1-+5 magical, elemental, aligned, sturdy, metal typed, and the other various House D versions!
Perhaps even alter them to apply variant stats:
Slashing - decreases weapon damage die by 2 steps (1d4 for longbows, 1d3 for shortbows), but increase base threat range by 1 (standard bows would have a 19-20, improved to 17-20 with Improved Crit or Keen, while the Silver Bow would be 1d6 18-20/x3).
Bludgeoning - increase weapon damage by 1 step (1d10 for longbows, 1d8 for short), but decrease crit multiplier by 1 step (Silver Bow would be 1d12 19-20/x2).