I despise the NFL front office, and their actions at the HOF game is just more of the same corrupt nonsense we've seen from them over the Goodell administration.
However, unfortunately, it is going to be tough for fans to get much from them by way of damages. Obviously the tickets get refunded, but people will have a hard time getting reimbursed for ancillary expenses. It's not 100% impossible, and some people had some success following the Super Bowl fiasco, but it's very tough.
Courts tend to rule that if you buy something and get what you pay for, you don't get reimbursed for that thing. For example, if you spent $50 on food at the stadium before the game, you don't have standing to get the $50 reimbursed. You bought the food, you paid for the food, you got the food, you ate the food.
I'd love to see the NFL fry, but this is little more than bad PR, nothing that is going to put a dent in their ridiculous revenue streams.