Poirier said he "was hurt a few times".
Also, you need to evaluate it based on a volume striker, as that is Max's game... it is part "hurt" and part "exhausted" that come together when Max has someone in trouble.
In round 3 Dustin was getting swarmed and borderline overwhelmed. That is where Max is most dangerous, the punches from max keep coming - Dustin was having a hard time firing back and finding the energy to continue to block and circle to avoid being pushed against the cage. He dug deep, which he stated, and got out of trouble but it would be misleading to say Max never hurt him.