I can understand the worries because I have also experiences that control over the potency of your spell can be really important (especially as an mp-eater.....).
Of course I think it is best to wait first and complain after so I'll generate my opinion when the spells are changed.

But as a suggestion: Does anyone know the game Dream of Mirror Online (sort of a FFXI rip off but a good one - loved it)?
There they had different tiers in "one" spell, meaning that you could level up your skills at the appropriate character level but could downgrade them anytime as well by using buttons to regulate the level.

Maybe (no I haven't thought about how to make it UI-friendly yet) this is an option here, too? Then there would be less spells (less chaos in the spell list) but the own control at which level you want to have the spells.