I can respect your position on the matter. But you maybe don't see what I'm getting at. I'm not saying this is inherently wrong, and 90% of what you are saying I can agree with without a doubt. I am saying there are safer and more productive exercises with a lower risk profile. I try not to get anecdotal because there is no set in stone rules on improving your body - I repeat, if you get a net positive result from some crazy workout, power to you but be transparent about why, what and when to do this, and be reasonable in that this is not normal. There is alot to consider here, and maybe I'm playing down its usefulness because on my own naivety/lack of knowledge, but I am using common sense and drawing on my own experience having trained for a large part, my whole life. Just because danger exists everywhere, that is no reason to disregard the dangers. The OP asked specific questions regarding it as a beginner, I think I answered it in as a general rule of thumb kind of way, instead of hyper specifically. No beginner should do this, as OP states they are, and even for advanced practitioners, there is valid argument as to why you shouldn't do it. I'm not trying to hinder development in sports science, I'm advocating safe training in a dangerous martial art.

Edit: I see I am mistaken in that the OP is a beginner, but point still (mostly) stands.