I don't know, I like the enhancement for the tier 2 spells (wich are quite insignificant right now) but IMO tier 1 should remain as they are since they are supposed to be weak spells, so their visuals should be weak too.
I hope it's a well planned enhancement and not just a "let's make everything bigger" fix.

Something I would love to see is a different visualization for AoE spells, for instance if I cast an AoE I should see a single animation on the whole area instead of multiple animations on the mobs, this would be cooler and would help understanding the AoE.