Unless they were playing for real money, then this test is not valid. Poker is a game of observation, strategy and having the guts to bluff or call a bluff. If you have no “skin in the game” then bluffing is a waste of time. The machine will call your bluff every time. At that point it is just the luck of the draw.
Sure way to get wiped out, unless you know a bluff when you see it.
ML/NJ