Were there widespread complaints about Shepard's performance on 14? I remember seeing some, particularly their not finding Cone Crater when they were almost on top of it, from people who thought he was too old for the physical demands of a lunar EVA.
I thought that was a little unfair given how much they tried to do without a rover. The rover was introduced precisely because the lower lunar gravity didn't come close to making up for all the sheer effort required to cover significant distances on foot, flexing a pressure suit.