My bad, I was confusing guidance with Bless. Guidance only affects ability checks, but in BG3 with its prevalence for Shoving creatures, it can still be fairly relevant.
I don't agree with changing level-d spells to bonus actions to discourage pre-buffing. Spells that last 10 minutes or more? Sure. But spells that last a minute (and thus are fairly powerful) should take a full action. You risk the cost of pre-buffing and wasting turns, spend the cost of an action to do it in combat, or choose to spend your action doing something else.
