Genuinely surprised seeing this thread, as I've always been under the impression that SHFs were more or less useless because of their slow speed and large size making them super easy to hit and out-turn, and this is coming from "the osprey guy".
After reading this thread though it seems apparent that the only real issue has been the SNAC change, which seems like something that can be fixed. If you can make a SNAC do different damage across different ship types, why not just balance it so the SNAC does more damage against SHFs? SHFs would then remain a good counter to VHFs (which they absolutely should be) but would be easily countered by bombers who literally would be able to insta them.