I agree with some of that, but as a snake owner myself, and having between 20 and 40 snakes in my house at any one time, the "snakes don't need to move" argument just isn't valid unfortunately. I've found through experience that snakes of various species will behave in a much calmer way and be much more placid and easy to feed if they have plenty of room to move, climb and most importantly of all thermoregulate. If a snake can't move from a cool temperature to a warm temperature depending on what it's doing (feeding, basking etc) it just won't live as long.
Power feeding is probably Brian's worst trait - a breeder at his level does need to make sacrifices in terms of space in order to maximise profit so that's an each-to-his-own issue, but he over-feeds his snakes by a huge amount. You don't need to force a snake to eat in order to power feed it. A snake is an opportunistic hunter - given the opportunity, it will take food when it can. That's how they survive such long periods without food in the wild. The only time a snake will ever refuse food is if it's just eaten, or is unhealthy. Generally speaking, a royal python (his main interest) needs feeding about once a month in order to be healthy, and live as long as possible. He feeds them a large prey item once a week, if not more during breeding periods in order to massively increase body weight and size so that their egg yield is as large as possible. While this has no immediate negative impact on the snake, the life span is shortened by a huge amount which just isn't an issue for a large-scale breeder like Brian. The turn over is quick anyway, as a python can't be expected to breed constantly into old age. Once it's prime years are over, it's done. If he's power feeding (and he definitely is!) the snake will produce massive clutches for a few years, then will be unable to continue. Also the neonate snakes are more likely to develop neurological problems in later life (a long time after they've left BHB) and it's just bad practice in general.
I can also say for a fact that none of my snakes ever utilise their defense displays to me. I clean them regularly, handle them in order to maintain health, and often move them around. I've been bitten once in about 4 years. He clearly agitates them for no reason other than to make an exciting YouTube video, and personally I think that's a bit daft.
I don't wanna turn your thread (which I support on the main issue by the way!) into an off-topic rant so I apologise if I've already done so! I'll leave it at that, and hope that lots of people get involved in this project.