Given their small shapes but still potent weaponry a squadron of just 5 fighters with these range buffs would probably be able to destroy a whole fleets after some time if there are no other fighters to counter them. Say they have like 1k range, no gunboat, no cruiser or secondary turrets on BS's will be able to push them back, since the fighters can always stay at a safe distance, where as atm they need to get dangerously close and give the bigger ship an opening to just give it a smack and potentially kill the snub.
It's a form of balance in the end. Fighters are close quarter specialists and should stay that way imo