Personally, I think there are way too many bows now. I mean, don't get me wrong, a little variety is nice, especially in terms of roleplay, but sooner or later people are just gonna gravitate towards the strongest ones available and disregard all other niche options (besides troll builds or the occasional New_Player).
Also yeah, the STR/PD requirements for some of the new bows and xbows is pretty nuts. However, the PD requirement shouldn't be too bad if investment beyond 6-7 points has no difference on the highest-tier bows to encourage more dedicated archery but not to the point of forcing people to use insane 31-12 STR ranged builds, as you need 21 STR to reach the PD requirement. However, the Arbalest should have its STR requirement nerfed to at least 21 for the aforementioned reasons.