#2 Must not - WWE may have Kurt Angle squash him at the Grandest Stage of 'em All

If we have John Cena or Drew McIntyre in this match, the chances that Kurt Angle would emerge victoriously are minimal. But with Baron Corbin in this match, WWE may think of giving a big win to Kurt Angle to end his triumphant career. While I am not against Kurt Angle here, the thing is WWE needs to build future stars now.
Also read - Opinion: Batista must retire Triple H at WrestleMania 35
In case Baron Corbin loses his match at WrestleMania 35, he will lose a lot of momentum and the WWE Universe will never look at him as a credible heel. Thus, it would be better if he does not face Kurt Angle at WrestleMania 35, rather than taking the pin at the hands of a retiring legend.
Becky Lynch has been challenged HERE.