Which is why I was always fascinated by it. Same thing with Franz Josephs' design work.In many ways, SFB is more true to the original Trek canon than later Trek movies / shows were.
As for fighters, I think there is a place for them in larger combat arenas, where the idea of a large mass of smaller ships could prove more difficult for targeting computers to manage. I also see them being more applicable in the TOS era, then diminishing through TNG, until the Dominion War, and they get a boost again, hence the Peregrine class.
So, are they as usual as contemporary fighters? No, I don't think so, but I think that certain situations and missions would benefit from a squad attached to them, while minimizing resources for larger ships or facilities to maintain them.