Ramana said there could be no mass instruction. Actually, I believe it was Yogananda or Richard Wright whom he said this to. I hold it as one of my fundamental beliefs. There is no one path that can suit everyone. Even people who follow the same Guru will have slight variations and needs as each nervous system is calibrated a little differently due to a combination of pre-natal (genetic) and post-natal (environmental) influences. Traditions are only cultural containers to preserve and pass on esoteric wisdom throughout the ages. How much this works is a matter for debate. Ultimately Yoga, with its various branches, does a good job of subsuming all of these variations - it's unique distinction. That magic of yoga is that you can find it everywhere, although not by name, in every corner of the world, because its branches reach so far.
As far as i know these type of people, at this state of consciousness they have reached, do not argue and take difference with one another. Actually i have seen it. So i choose to follow their example and respect your beliefs.
i remember Brother Turiyananda saying to me Paramahansa Yogananda had said that China would invade us by submarines and i asked. Brother Bhaktananda if he had heard it. He said that he had never heard the Master saying that and then he reiterated that he had not.
When i later told this to Turiyananda he immedaitely showed humility and said. "If Brother Bhaktananda told you that...you listen to him...he is the highest monk on the hill."
With this in mind; i doubt that Yogananda would have contradicted Ramana Maharshi if he had said it to the Master. But ofcourse neither of us were there to know.
i also remember the case of a fundamentalist Christian trying to convert Paramahansa Yogananda. To every thing he said he only repled; "You may be right." until the man evetually left the monastery.
