I think there's a difference between a a game with a skill element and a random chance element that are always consistent, and one where the game arbitrarily decides that because someone won 200 tries ago nobody playing now is allowed to win.

I understand that with the claw machine the claw is unreliable, but the same claw is always equally unreliable and each time I play I could actually win, and my skill does affect that chance. With these games most of the time when you play there is a zero chance you could win, no mater how well you play.