dude, thats wooden arrows. the weakest arrows in the game. imagine this with holy arrows. instant carnage. 128 damage is pretty high for only one click, even for endgame. terra blade does less than that. let's try the current tsunami with holy arrows:
the tsunami does 60 damage, +6 for the holy arrows, so one shot would do 66 damage. but wait, it shoots 5 arrows at once, so 6x5=30. total of 90 damage per click. but wait, each arrow shoots stars too! so each star does half the damage of bow and arrow combined. thats 66, so 33 would be how much damage each star does. 33x5=165. add that to the damage of the bow with the arrows and you get 90+165=255 damage. per click. without accessories or shroomite armor. insanely OP, even for endgame. as for "making up my mind", i'm saying that the only options to rebalance it out would be to either move fishron to post-moon, or nerf the drops. without one of those things, the drops are way op.
heres a story. once, there was a north pole. it was in 1.2.2, and it was OP. but i was fine with it because there was nothing to fight after it that you hadn't fought before. it was truly endgame. then fishron came. you can get his stuff(and most people do) BEFORE the moon events, and they are way easier to control than the north pole.
edit: apparently, i messed up. each holy arrow summons TWO stars, not one. so the damage would be even more OP.