” their parents were extremely angry at their gadlus, so they started Open Orthodoxy”
That is not how it happened. Rabbi Weiss wanted better training of the RIETS rabbinical students in practical rabbinics and pastoral counseling and was prepared to set up internship programs with leading MO community rabbis to allow this. (Most of Rabbi Weiss’s former Assistant Rabbis are now leading large successful MO shuls today.) YU wasn’t interested — I am not sure why — and then a major donor offered to endow a yeshiva for Rabbi Weiss. What rabbi would turn down a big donor offering to endow a yeshiva? Interestingly, RIETS now DOES have a lot of practical rabbinics and pastoral counseling training in its semicha program.