Bow has several decent physical damage morphs which have been used with the current CP system (i.e. Bombard, Focused Aim). Their poison morphs (Acid Spray, Lethal Arrow) have long since been forgotten since Poison had been buffed with Thaumaturge as opposed to Mighty.
Now with Poison falling under Mighty in the CP tree these morphs will be much more viable and provide people with useful alternatives.
The one outlier now will be Volley and its morphs. Arrow Barrage is Physical Damage with increased range and radius. Scorched Earth is shorter range/radius with Flame/Elemental damage.
It is unlikely that many stamina builds will have any reason to spec into Elemental Expert CP. Also Magicka users do not utilize bow. Wouldn't it make sense to change thismorph to Poison vs Flame. The only class that may benefit from the fire morph maybe a Dunmer Stam DK, otherwise this morph will most likely be neglected.
I know there are probably 50 skills in the game that don't synergize well on certain builds because they do "x" damage. But maybe this isn't to hard of a fix?
Wood Elf Stam NB (PVP)
Redguard Stam Sorc (PVP)
Altmer NB (DPS)
Imperial DK (Tank)
Redguard DK (DPS)
Altmer Templar (Healer)
EP - PS4