So use your normal weapons until you get those 5 points in T to get to the same level OR just don't use it at all. I guess it wasn't a perfect way of doing things, but it is by no means game-breaking. Your weapon skills were never worthless because they got you as far as they have. You needed them to get to T and then you develop new skills to continue.
The game is by no means properly balanced or polished at this point. After 1.0.81 patch its good enough to actually start playing the game. There will be another TON of patches coming to fix the rest of the technical issues and to address game imbalances like this one.
