Re: Teacher OKs "Avoid[ing] touching females on religious grounds"
Why did they have to segregate the class entirely? The only thing I can think of is that he didn't simply not want to train with women, but he perhaps complained about accidental contact with women if they trained too close.
That in my view is a case where accommodating him infringed on the rest of the class.
Having a person refuse to bow or ask for something specific I could kind of see...but personally I wouldn't take such a student. Sorry, you gotta follow the etiquette.