This is just routine hard sparring at a Boxing gym. A lot of people in here always gets pissy when I told them that sparring for KO's doesn't just exist, but regularly (just not always or even mostly). There's light to medium sparring too that's happening regularly.
So you think Boxers aren't doing the same thing. You think Boxers don't understand hip rotation, pivoting, shifting weight, and even the use of the shoulders to punch harder and faster? Mayweather made $180,000,000 for one fight and Pacquaio $120,000,000 for losing. You think with that much money on the line, tens of millions of dollars in resources and decades of developing a craft of a multi-billion dollar sport....and not to mention Worldwide fame and glory..... that they wouldn't be able to figure out what you know at your school in a strip mall? When was the last time that a TMA event paid over $20,000 for one fighter and the event was held in a real stadium and not some hotel ballroom?
You seem to think that there's some special powers that TMA's have that's completely unknown to Boxers and other sports fighter such as MMA. Even if most UFC fighters aren't even making 1/36,000th of what Mayweather's making for a fight, you think we don't know about techniques?
No, the problem with most other martial arts, meaning most of the TMA ones, is that you never spar this hard so you think it's Mortal Kombat 1, 2 and 3 or something when you see it. To put it bluntly, you're scared of it. You think people may die or something. But this is standard practice for fighting gyms and fighters. Not all who trains at such gyms, go this hard though, usually only the fighters or those who want to, would go this hard.