As stunts go, it requires caring enough to remember visiting these folks 8 years ago in the first place, then caring enough to remember the things he talked to them about at the time including a probably off-hand, half-joking promise, and then to decide to make that little extra effort to fulfill the promise regardless of whether anyone else there remembers it as well as he had, or cares. I mean, yeah, I can totally see why that level human connection, attentiveness and preparedness would totally be a turn-off in a presidential candidate. It certainly would be a major stunt for the other guy to pull off.