The majority of the second episode was focused on reptiles so I do think that it is relevant. I agree that stricter rules MUST be put in place regarding large or venomous species.This is my main issue - IMO it should not be accepted, and some subgroups in the community do not accept it as appropriate keeping. Racks are a way of keeping more animals for less money, and compromising their welfare.
I don't necessarily think private reptile keeping is hugely relevant to this programme's subject, widespread as it is, although there probably should be stricter limitations on keeping 'giant' snakes, as well as the DWA requirements for venomous species.