Medium were useless before snac nerf too indeed, i cant take point of their existance, should be maded like Transgressor.
Dual Nova Heavy Bombers is standard raid anticap setup, everybody have wings of it to counter cap-walls, so no need speak nobody dont fly them. Fighters is not a problem if you going in formation with cap, which can cover you. Or just have 1-2 HF/VHF to give to your wing time to solve bomber's tactical task - destroying of enemy capitals. I guess you need concretise about who you speak when mean "few people use bombers", because they pretty in use on their main purpose in any fleet fight with big caps involving.
About light bombers, right they useless now. With 1 hour instead of 2 hours i think its wont harm anybody to return SNAC. From another perspective, i like to see how removing of SNAC made people fly other classes, which before were supressed by SNAC bombers. Well mostly i like to see how fleet members on bombers actually start to fight caps and not waste their time on snubs.
I guess only real thing is full rebalance, as Teschy and Snake said.
What if we will merge SHF and Light Bombers in one class? As it seems, SHF just fulfilled same niche what SNAC LB had before, used for same. Also this two classes placed in stupid rivalry - SNAC remove SHF completely, no SNAC - a lot of dual mr SHF. So maybe create new class from it, and make SHF as it should be, for really balanced between fighters and bombers?