Is 32 ACT good enough for Yale?

Chance yes, equal chance (32 vs a 34 candidate) highly doubt it. While the ACT scores are not broken down into similar detail, if we look at the bands published in the Yale CDS, you can see a significant falloff in matriculates with subscores below 700 on the old Sat. I suspect if Yale (or any highly selective) were to publish a distribution graph, we would see more scores bunched towards 33/34+ than below.

So, yes applying RD with a 32 is not irrational. Agree with @Houston1021 and @IxnayBob that applying SCEA with a 32 is not smart for the reasons they elaborate, and it also forgoes the opportunity to put OP’s best foot forward if OP can achieve a higher score than 32 on either or both the Oct 28th and the December 9th tests.