It was just a video of him talking, it is not proof of anything unless, like barrmarra, you unconditionally believe everything he says (oh, and in the video he asks people to buy his merchandise several times). He hasn't exactly got an unblemished record of always telling the truth has he. Sorry, but that is not evidence.
There are videos of Trump talking and saying things that are not true, you wouldn't think of posting those as evidence of things he says. Would you post a video of him saying if you inject bleach it might help you with Covid as evidence that injecting yourself with bleach helps Covid? No.
The point is none of us know what happened, we don't have the full story yet. Some of us are prepared to wait until we do before we pass judgement. Others just want to believe him unconditionally and also believe there's some sort of cover up or conspiracy against him - he knows how to push those victim buttons (and send people to his merch website).
He might be telling the truth, he might be stretching it or completely fabricating it. We will find out in due course. For now he is released on bail.
Edit: just saw your previous post where you said you are not stating it as fact.