I think I'm missing the joke here. I want my 20 minutes back
Is the joke only the simple fact that it's clearly not real?
They constantly force fake / insincere laughter even when there's nothing happening. They "shush" even when there's not yet any challenge to be lost. They pretend like there's some reason to lunge for cards at the same time (never failing to laugh as if that's funny) and then pretend that there's something funny about revealing their cards at the same time. Then they pretend that every scenario is funny when it just isn't.
It would only be funny as a quick satirical parody of extremely fake/pointless shows. But then it goes on and on and on...