I think we need to be careful about relating the trappings of TMAs like bowing and paying and wearing certain uniforms as 'respectful'. What it really is IMO is a system by which your instructor controls you. The cult of personality TMA instructors often try to establish is completely dependent upon having all the students in lockstep on every issue. Demand discipline in small, seemingly minimal things and you will get it on big, harmful things as well such as paying for belt tests (the single most reprehensible aspect of TMAs IMO) and buying uniforms only from the instructor.
We don't need that in BJJ. A lot of us started doing BJJ because we wanted to get away from all that and get back to martial arts that were about fighting effectiveness. I feel badly for this guy and I hope his GB school is not representative of the whole org.
My judo dojo is 10x more strict than the gracie barra i train at (bowing to a pic of kano entering/leaving the dojo, bowing before leaving/getting on the mats, bowing to each other before/after we spar). I see what you're saying about mcdojos but i think it's more about respect and tradition. btw my judo dojo is the largest judo dojo east of the mississippi river, with national, international and olympians training there. If they can show respect and follow tradition, so can I.