It is excessive gap. 1/2 the thickness of one quarter is maximum acceptable gap for a CA hinge.

Its going to create a LOT of slop in the controls.

Its going to invite control flutter. (which can rip the control surfaces ff the aircraft)

The gap will make the controls less effective (even if thier movement wasn't sloppy) because of an aerodynamic effect of the slot.

The potential problems are serious enough that any of or local club instructors would not be willing to have the beginner fly an airplane in that condition. (and any experienced member that brought susch sloppy hinging to the field would be awarded our "Blunder Award" at the next club meeting.)