Doesn't matter, it was illegally applied and against the rules. Video shows the transfer of hands from the face > shoulders > back.
Same thing for fighters who are caught with illegal substances in there system, why should they see 6 months to a year ban when they didn't even last 10 seconds in the fight.
Your argument is that the grease didn't have much or any bearing on the fight. Neither does the guy pissing pos then seeing lights out 10 seconds later.