Monks generally arent too AP strapped since they'll generally just go one tree + Falconry. So this only really affects Clerics and Druids that want to go hybrid melee/caster, and thus need the AP to split between their melee and caster trees.
I'd rather just see them add a WIS multiselector for Warpriest's trance, like FvS gets...and I'm OK with Druid having to make more of a tradeoff between STR for melee and WIS for casting play, and not being able to have an all-in-one WIS build