2, and 5 only apply to "game[s] or other event[s]" which has a specific definition (namely it is about e.g. sports betting and other live events). 7 doesn't apply at all since he didn't alter or manipulate the machine in question, it is working as intended.
Plus the claim was:
> in every jurisdiction
Nevada has some of the most strict gambling laws in the world (and showing it is illegal in Nevada hasn't even been satisfied yet).
Well, this cheat is equivalent in operation to having a book with all the answers to the quiz and a good index. The two should be equivalently legal, and I strongly suspect someone has tried to sit at a quiz machine with a curated indexed encyclopedia, so we just have to find that precedent.
There won't be a precedent because you just can't look up into fast enough, that's why these systems can still exist even with internet search engines.