Even if the punch in question (right hand) does land, how could one tell that that punch landing was legit enough to fell Gans? I agree with those who claim the video does not prove Gans faked it...and neither does it prove he didn't.
It does make it harder to decisively conclude Gans threw the match..and I have been among those who claim the burden of proof resides with those claiming he DID throw the fight. Not on people to prove there were punches which landed or didn't that could KO Gans or couldn't.
As for Gans potentially throwing it..sure he could have. Every fighter had a guy who treated him like crap..fighters were chattle. So I am not sure we can assert that Gans probably had a guy who may have wanted him to tank it in this particular bout and so he probably did when we don't know that. Primo Carnera was treated like dirt, maybe that is why Larry Gaines abused him?
I guess I remain here: Joe Gans may have indeed threw the fight. He may have been buzzed by some bombs and decided to get out of there with minimal effort. He may have been forced to lay down. Tyson-Berbick looks more ridiculous than this bout. When you know the combatants, you can see how it was legit. So, I would need a lot more corroboration from disinterested parties..or perhaps if Gans had fought McGovern again and lambasted him it may show either the first was a fraud or at least the first bout doesn't define Gans against McGovern in a historical sense.