But after that video I'm imagining some high-tech gym where someone's got a hooking and top-rolling robot arm to train against, haha.
Yeah exactly, there are many pro machines to measure punching for boxing and kicking power, they could definitely make something measurable.
The reason I think it's important is because, unlike other sports, everyone can arm-wrestle. Kids can arm-wrestle. So the average fan watches two individuals compete and all they see are the absolutes: one winner and one loser.
They're missing all the relative degrees of strength; there's likely millions of people in between that winner, and the fan. Millions. If you can measure the power and assign a number to it, than this will be more apparent, and the competitors, and the sport, will get more respect, and more popular.