Years ago I was okay-ish with Poker (positive net outcome after about 20k hands on pokerstars) and I'm not so sure about this.
I mean it's statistically true, and calling Poker a pure-luck game is like calling golf a pure-luck game because of wind. But to me the addictiveness of Poker is pretty "Skinner Box like" -- you can literally do nothing wrong, do the theoratically best moves, and still lose hard.
Of course if you did the same move every time in the same situation, it would eventually pay off. But if people are so reasonable addiction wouldn't be a problem in the first place?