Making a choice (any choice) is often better than making no choice at all, although not choosing at all is itself an often overlooked valid choice ("A strange game. The only winning move is not to play"). There's an oxymoronic french expression reflecting that often overlooked possibility, especially in dire situations: "Il est urgent d'attendre" which could be translated as "it is most pressing to wait".
There's also the phrase by Dr. Linda A. Lewis: "Don't just do something, stand there!" to exhort careful consideration even in face of a crisis.
It's not even that really: if you are stuck, that means as near as you can tell, all candidate moves are equally good. Picking any one of them (at random, or through any other heuristic) can only be a bad move if there is something you missed about their relative value.