One of my job tasks involves the impact of accuracy of items on company websites. It comes down to what the source of truth is. If the website is that, then yes, he’s going to get a good payout. Most likely there is a televised or other controlled draw though, and that is the source of truth.
I mean the website actually says this on it: “This website, however, is not the final authority on winning numbers”
He’ll probably get some money, but I doubt much. He wasn’t subject to any harm and him making decisions based on his expected winnings are, unfortunately, his problem. I’d guess he gets in the neighborhood of $50k, probably $10k or less.