If I score two out of three hits with my autoblaster, isn't it better to force those hits through on a TIE Phantom than allow it to roll its 4 agility dice and cancel them?
If I was able to squeeze out reliable 3+ damage out of a 4-dice range 1 attack, I'd agree with you. But the Autoblaster looks like an attractive 5-point pressure device on high agility starfighters. Yeah it could be cheaper, but what would be a better alternative to take with it when facing down phantoms? Empire doesn't have turrets.
If the TIE Phantom pilot is that terrible of a player that they allow this to occur, then it doesn't matter if you have an autoblaster or not.
The autoblaster has a great ability, it should cost only two maybe three points and not the quite steep five that you pay for it.