I think the idea is dumb. The abilities you are taught are not directly related to your alignment for good reason. As a force user on the Republic Side, you were not taught Force Lightning because the Jedi Trainers do not practice Force Lightning, you have no where to learn from. Plus I disagree that lightning is really a dark ability. I believe in the school of thought that how and why you use a force ability determine if its light or dark, not the ability itself. I honestly believe Force Lightning could be used as a Jedi defibrillator if needed.
Honestly I don't feel alignment should have any effects on abilities or even what items you can use. It is against cannon to say dark side users can't use a blue saber. Look at Ep 3. Also there were LS jedi would use red crystals in the EU.
I honestly don't mind the Jedi Consulars animation style.