I think the world has shifted significantly, it might have been the case to expect that people would learn things like the Unix shell or git on their own when CS was a major for nerds, but realistically these days many people sign up for CS without neither the passion for hacking nor the math chops. It's just a major like any other to them, and they are basically in for the money. Obviously any personal choice is fine, but we should adjust our priors accordingly.
