Thank you for posting the video. I found it very informative. And I would agree with that Trump would be in the clear if it weren't for two major factors:
1.) We know there are recordings that show these donations were made with the specific intent to influence the election. This is from Michael Cohen's charging document, "Cohen deceived the voting public by hiding alleged facts that he believed would have had a substantial effect on the election, after making the payment to [Daniels], and after [Trump] was elected President, Cohen privately bragged to friends and reporters, including in recorded conversations, that he had made the payment to spare [Trump] from damaging press and embarrassment.”
2.) When Trump falsified his Financial Disclosure Form it was both a.) illegal in its own right and b.) demonstrated a consciousness of guilt. The reason Trump was hiding the payments is because he knew the unreported payments made via Cohen and American Media were illegal.
Keeping with the tooth analogy provided by the former FEC chairman, if someone paid $100k for you to get dental work done while you're running for office - that, by itself, may not be a campaign finance violation. However, if the person explicitly says "I'm doing this to help you win the election" and you don't report it as a campaign expenditure and you go out of your way to falsify your Financial Disclosure Form - then prosecutors are going to have a slam dunk case against you. This is the position Trump is presently in. And is also why they were able to slap a campaign felony charge on Michael Cohen.