Pau was the first one to do it since Hakeem. I purposely said, "first", not "only", because I knew people could say that KD had arguably done it too. I wouldn't agree, partially because whether KD was better is debatable and partially because KD wasn't Bron's primary defender, Iggy was, but it's close enough to be worth debate.KD did it
Bron was unquestionably the best player in 5 Finals in a row, but he didn't match the other team's best player aside from the first one (after KD it was either TP/Duncan in 13/14 and Steph in 15/16), so he didn't pull what Pau pulled. Neither did MJ or Shaq or Kobe or Duncan or anyone else.
The person who said that Kawhi and Iggy had outplayed LeBron is a flaming idiot, it wasn't even close.