That's a non-statement, it doesn't mean what you think it means. Saying someone "didn't use an IV to cheat" is not the same as saying someone "didn't use an IV at all", and prior to this week nobody thought anyone was allowed to be using them, suddenly we learned as of 2019 if you are able to get a UFC doctor to okay it you can rehydrate with one, which opens the doors for selective cheating if the UFC allows favored fighters to use IVs.
Nowhere in any of those statements does it refute that an IV was used, but simply that it was used within some arbitrarily alotted dosage so not technically "cheating", yet prior to this week everyone would've thought IV usage was grounds for suspension and making the fight a NC. Even fighters themselves seem surprised about this, so clearly this wasn't something everyone knew, its a backdoor loophole they snuck into the rules to allow selective cheating.