BIRTHDAY was released as the 4th single from PRISM. It peaked at #17 on Hot 100. It is a RIAA platinum certified.
OUT OF THE WOODS was released as a promo single first then eventually as a 6th single off 1989. It peaked at #18 on Hot 100. Currently, it is a certified Gold by RIAA.
OOTW may have peaked at 18 when it was initially released, but it is currently struggling at No. 51 rn during its single run (down from last week) and has peaked at 44 since its release. OOTW is a flop not a moderate hit
EDIT: my point is birthday because it actually performed decently for a single.