From Dark and Darker Wiki
< Shriek is too fast and too overpowered
Believe the point is that bard trivialises PVE especially in cases of clearing (spawn rushing people in trios) and in bossing as most of the pve has a rough -20% base physical resist,then adding another +47% damage to them from all sources for playing a [1;2]s song whilst also buffing itself to receive the equivalent of 10strength(ballad of courage),another pair of lightfoot(beats of alacricity) and around 10 dex(aria of alacrity)-seems a "bit strong".