Reading it charitably, I think the point was that they stuck to the slogan (a perfectly noble one) as an expression of support for the government, long after it had become clear to everyone that the government wasn’t serving the workers any more, if it ever truly had been. Similarly, the rules-based international order is a noble idea that everyone still voices commitment to, though everyone has known for a while that it has nothing to do with what the imperial USA and its vassal states really do.