These aren’t mobile games, they’re desktop games, and this isn’t anything new. These same themes and effects have been used for decades. As someone else points out, even the retro Mario games have you use spinners and slot machines. RNG is exciting and helps make a fun and engaging game. I mean, by that same logic, a game like Catan should be banned because one of its primary mechanics is just being rewarded for favorable dice rolls, as you would be when gambling on dice.