A finish doesn't make a fight of the night. Usually the number 1 criteria for this bonus is a back-and-fourth fight, typically 2-3 rounds where both fighters are doing damage.
I have no problem with that fight taking FOTN.
back and forth really? Rio Cofer and Brookins Poirer were back and forth this one was...
Decision (unanimous) (30-25, 30-25, 30-26)