Counterpoint: The seahorse emoji. The output repeats the same simple pattern of giving a bad result and correcting it with another bad result until it runs out of attempts. There is no reasoning, no diagnosis, just the same error over and over again within a single session.
You never had that coleague that says yes to everything and can’t get anything done? Same thing as seahorse.
A system having terminal failure modes doesn't inherently negate the rest of the system. Human intelligences fall prey to plenty of similarly bad behaviours like addiction.