It is a bit problematic to try to teach students about human rights law in an environment that claims to be exempt from said law and blatantly acting in contravention of said laws. Not exactly the best example, and the law society is pretty big on holding themselves to very loft ideals. Regardless, it isn't about the students who don't actually exist.
This is about you guys wanting to force a professional organization to endorse a program that they disagree with. If TWU has the right to be homophobic, why doesn't the law society have a choice in regards to whether or not they support that?
How is it any more problematic than teaching science at the catholic school attended by my girlfriend's boys or the private catholic school my oldest went to? Are you saying professional teachers can't teach because of the school they work for? This would make sense since you seem to believe people trained to be lawyers can't practice law based solely upon the school where they studied.
The society cannot disagree with the program as long as the curriculum is the same as every other law school. What they disagree with is the right if a private christian school to promote an environment that follows biblical teachings to students who believe those teachings also. It is a simple matter of discrimination based upon religious beliefs by the law society.