what will happen is that, new set comes out, people will still play pirate warrior because it's impossible there is something even faster than that and winning at turn 5 is good in every meta no matter what and quite possibly with jades both are still the fun police for any slow or homebrew deck, so community will riot after a month and another 2 months after that they nerf something.... I don't think you need to wait for data or new cards to predict that. What they can come up with that would make these decks not as good at what they do? They're so extreme and binary at what they do, I don't think anything can challenge that.
Pirate Warrior only loses Sir Finley, which might seem like a big deal and they thought it doesn't need changing because of that but when you think about it, how often warrior even uses hero power? There is no time for that in 5-6 turns. It does help when somehow your stupid start isn't enough to finish the game and get some gas after that but I doubt it's relevant in majority of the games, let alone how often you get to draw and play the card.