CHEWBAKAspelledwrong said:
Because the new order is only ~30 years old and as TFA explains, Luke failed in his first attempt to train a new generation of Jedi.
Ok, but in my hypothetical he does succeed in training Jedi. You could say Kylo Ren just split off and joined the Knights of Ren. And 30 years is more than enough time to have a few Jedi Knights and even low level Masters.