Additional information behind the thought...

Chainspell can make a standard spell an instant cast spell. This type of concept.

An enfeebling spell in the future may perform an effect, instant cast, and then the spell has a recast timer. This may allow some enfeebling spells to factor into gameplay without slowing down the pace.

I did not see a thread title or a dev tag relating to instant spells or magic adjustments. Will try to look more thoroughly for these later.