Nothing will get goons in the air OTW to their HQ's quicker than loosing radar.
Instead, why not attack other strat targets that won't create the goon conga line. Hit the fuel and ammo strat targets and you'll possibly do more to affect the war than just blinding the other team.
OTOH, there are some who get great pleasure out of blinding the other side, the ability to quickly remedy this helps to maintain the fun factor of those affected, take that ability away and the arena numbers will skew even quicker and with worse results, IMO.