I think the Ghost is fine actually. I also think TLT is fine. It's what the Ghost was meant to do, is get four weak attacks per round, because in the show, that thing is literally covered in turrets, and has a different person firing each one.
The Kanan/Fenn list is more an unforeseen problem with the PS11 coordinate. It's annoying, but it's not the most horribly oppressive thing ever. There's already plenty of ways to beat it.
As for TLT in general, TLT spam (either Nymranda, triple K-Wings, or quadruple Y-Wings) is very frustrating but manageable. I think we need to stop demanding that stuff gets nerfed just because it's doing well. Unless something is clearly completely dominating the meta, we shouldn't be trying to nerf it. TLT and/or Harpoons are in almost all of the top lists, but not all of them. I don't think TLT is specifically a problem, and it just encourages a different playstyle. I personally find it boring to fly, so I don't use it much, but I don't get angry when other people do.