I don't think I endorse his reasoning, but I think you misread him.
It is not inconceivable that I misread him. Mind reading is a task that is particularly difficult when it comes to working out precisely which mistake someone is making when at least part of their reasoning is visibly broken. My subjectively experienced amusement applies to what seemed to be the least insane of the interpretations. Your explanation requires the explanation to be wrong (ie. it wouldn't be analogous to one boxing at all) rather than merely the label.
Death knows you use CDT, should you choose the opposite of what CDT normally recommends?
That wouldn't make much sense (for the reasoning in the paper).
Excuse the horrible terribad pun...
An evil Omega has locked you in a box. Inside, there is a bomb and a button. Omega informs you that in an hour the bomb will explode, unless you do the opposite of what Omega predicted you will do. Namely, press the button if it predicted you won't or vice versa. In that case, the bomb won't explode and the box will open, letting you free.
Your actions?
PS. You have no chance to survive make your time.
PPS. Quick! Omega predicted that in exactly 5 second from now, you will blink. Your actions?
PPPS. Omega vs. Quantum Weather Butterfly. The battle of the Eon!