Not the end

Not necessarily half them. You can inform your guess by looking at sports betting odds. Maybe a weak team is playing against a strong one? Then your split could be 30/70 instead of 50/50

You could make a more informed split to increase your odds. Say a weak team plays against a strong team, and official sports betting offices rate the chances 30/70. Instead of splitting the two groups 50/50 you now split them 30/70 as well.

Emails (gmail at least) can also dynamically display information. So you could just change a wrong guess to a right one after the fact.

You know what? I actually agree with you, in that context it’s a (little) silly

I don’t see how it’s silly.