ARC problems are too hard for me. I'm no longer sure I'm generally intelligent.
I agree that "equivalent to human intelligence" is not a robust way to define general intelligence, but humans are a general intelligence.
In general tech folks are far too beholden to an instinctual and unscientific idea of intelligence as compared between humans, which mostly uses linguistic ability and surface knowledge as a proxy. This proxy might sometimes be useful in human group decision-making, but it is also how dumb confident people manage to fail upwards, and it works about as well for a computer as it does a rat (though it mismeasures in the opposite direction).