I don't necessarily think this is a matter of who's right and who's wrong. Rather BJJ is a totally different animal than Judo. Just like it takes some adjustment to enter a Judo competition armed with BJJ......(and be stood up after a minimal amount of ground time).....it takes some adjustments to use your Judo throws in a BJJ environment.
It's all more evidence to the contention that this world is not perfect......and neither are the martial arts therein. Bet you didn't see that coming.....