I never said there was. In fact, I think it's the right approach and better than building in more turnaround time, because it makes onward connections much less likely to be disrupted. I usually have no qualms about booking pretty short connections on DL, for instance, because I know there's a high likelihood that my inbound will be early or, at least, on time.

I did blanch at a 31-minute connection that DL offered me through MSP recently though, that was cutting it just a bit too close.