No rankings on mythic one-armed bandit through v2 api? Why?

Hi! I try to get the rankings data from any of the One-Armed Bandit wipes here but I keep getting an empty array. It works for all the other fights, how come there is no ranking data available here? Is there some specific rules I am missing or is there any reason why getting rankings data would be different on the One-Armed Bandit wipes compared to the other fights on that log? To clarify, I am using the V2 api, and my goal is to extract the parse numbers. I have tried changing the compareType to Parses, but no luck

Cheers