Why would you say this? The Target Lock isn't spent when you fire it. So, you get to use your TL for rerolls. Also, the enemy can't spend an evade token for defense. All that for one point over a Concussion Missile. To me, it's a great missile. I always use one on Jonus.
http://miniwarroom.blogspot.ca/2014/11/darkhorses-strange-love-or-how-i.html
I think they do quite well. Tough as nails and they they just keep coming.
I was looking at Tie Bombers as an oddball option for all the big, turreted ships in the local meta. I read Darkhorse659's excellent article and was really inspired. I practiced and tried it out. I went to the best local Store Championship in my area. I was the only one to go undefeated into the Final Four.
Tie Bombers have a terrible time vs. Phantoms. I haven't figured out how to deal with them yet. Well, maybe one, but 3 got the best of me.
I'll admit that the meta for that store event was odd as I expected the big, turreted ships. I think I would've done better to face more of them, though. Still, it was a fun event. If you are experienced against the list (like all my regular friends) then it's not too hard to beat. If you don't know what to watch out for, you fall into the traps easily.
I think Tie Bombers do great against a lot of things, except Tie Phantoms.