Ok. You're definitely free to your opinion. I don't for a minute believe he's manipulating his content just to get likes and subscriptions to make money. Erik has a lot more going on in his life to worry about making money off YouTube. That doesn't mean he's not happy to make something off of it for his efforts though.
I didn't post his video, or any of them. I don't think it's the most scientific evidence or anything you can draw a definitive conclusion from. It's still a good video and a good test. Statistically, you'd need to repeat the results a lot more and see repeatable results before you could really draw any conclusions. It merely gives you an idea of what you might experience with one over the other.
There are other factors to consider as well even just as far as how easy one is to use over the other. No turning the lights off, adjusting flame nozzles, filling up tanks, etc with an AMP, and even other induction type annealers. With the AMP, part of what you're getting with all that money is ease of use and taking out all the guesswork. You simply use the appropriate pilot for your particular cartridge, input the appropriate code (or use Aztec to obtain it), then you just hit "run" and you're off- applying a perfect anneal every time with very minimal effort.
Say what you want, think what you want, and definitely use what you want- or don't. I'm just posting up thoughts and information for those it might be useful to. Annealing is something I've come to really appreciate and it's absolutely given me an increase in performance and consistency from my ammo. I personally know many others that are in the same boat. I know lots of others that have FAR many more things they need to improve and work on before annealing will do them any justice. For those guys, I definitely don't recommend going out and buying or building anything for annealing. I recommend they stick with the basics and if they do want to improve, improve on the basics first and add a little at a time. Annealing is one of the last things I'd recommend.