Which classes do you think need adjustments?

[Lyrica_Ashtine]

They're not the exact same, over half of SMN spell casts are instant vs around 10% of BLM casts.

AM can't be used in the middle of a cast, so you're going to have to be moving out of the death zone anyway, making it extremely situational.

It's roughly the same. If you know the mechanics, you can save a firestarter proc to for movement. Or depending on the content, you can use one to move prematurely to your destination.

Dodging AoEs mid-cast also applies to summoners, mind you. With or without aetherial manipulation. For both classes it means dps loss. Although the dps loss on summoners vary far more than for Black Mage.