A question of football - Deflategate

I know absolutely no one that is into football and this question has been bugging me..

If letting the air out of a football makes it easier to hold and Tom Brady let the air out of the footballs so it would help him...didn't he, by virtue, make it easier to hold for everybody on the field hence keeping or maintaining a level playing field ?

Seems like there was no harm done here except for perhaps a artificial regulation ?

Help me out here..

grassy