I don't think that it's too complicated of a question, but how important do you feel that a clear lineage is to the legitimacy of your karate or any martial art? It seems like everybody and their brother takes the time to back their school/club to a name that everybody will recoginize. But as long as your art is effective outside the dojo and is teachable inside, then should it really matter?
There's a lot of people who practise karate, but sadly enough not all of them have a profound interest in the practical application of karate.
It would be nice to have some kind of overview of other bunkai enthousiasts that are in the same area as you. That way you could meet up for training with other people from other clubs, with the same interests.