guys that advanced have put in the time to eschew the things a beginner like him would need to know. It's the old thing you hear across many fields of interest, "you have to know the rules before you break the rules". Most great fighters do not hold their hands in "proper" boxing position, not in the past or the present. They know those rules though, Dempsey and Louis wrote boxing tutorials and they weren't always in line with how they fought. Foreman? Foreman was foreman, a force of nature, teaching him "proper" anything would have been a waste of valuable time. It was best just to let him go and improve him where they could. Liston was the same way, of course, the truth is, both of their shortcomings caught up to them with Ali but Ali was Ali, not some sammy lunchmeat.
I met a guy at autozone who claimed to have sparred and trained guys like George and Shavers. Do I believe him? Not necessarily but he clearly knows George's habits in a way most random fans wouldn't. He claimed to be able to dance and box George's ears off, I was skeptical because Ali said that George was the best he ever fought at cutting off the ring but the way he described it, how george would take that big step (part of the reason ali called him a mummy) and this guy would step to his left and wait for george to turn into him and clobber him with a hook. That's a thing that the random fan won't even know what he's saying, he's talking about walking the guy into his shot, making him turn into it. Anyway, it was sparring, didn't mean he'd beat him and didn't mean he didn't like or respect george's ability. Everyone has flaws, even Sugar Ray Robinson took too goddamned many punches. Duran couldn't handle boxers from a temperament point of view, Arguello couldn't deal with speed and movement, etcc., etc.., That doesn't mean we should shit on them. Fact of the matter is, I've seen some really great fundamental fighters and they just often don't have the attributes to get anywhere. The perfect technical fighter with no punch and no physical strength is gonna have a hard time in the sport, it's a lot more than technique, especially the pros.