The only explanation is that straight up haters are rating this so low.
It's fun, you can tell all of the guests are having fun (and getting a little tipsy lol), and the audience is having fun as well (perhaps getting a little tipsy as well? Lol).
There's a lot games, games, and more games. There's fun competition and friendly competition playing games. All of the games are food and/or drink related. There's food/drink related trivia. I think everyone who watches it could learn something new from watching it, and it's fun to watch.
A lot of people could learn just how to have fun, have a good time, and by the lack of 8-10 ratings, the people choosing to rate this so low don't know how to have fun or a good time.
Plus, the best thing about the show other than it being fun, is that really good causes receive financial donation so they can continue to help and/or provide services that promote positivity, health, and well-being.