Not true in the case of poker. It's also misleading since in, for instance, blackjack, even when you play at the highest (casino-allowed) skill, you will lose.

Not true in the case of poker. It's also misleading since in, for instance, blackjack, even when you play at the highest (casino-allowed) skill, you will lose. That's not true of poker or DFS. There's still plenty of nuance (luck prevails in the short term while skill prevails in the long term).