The Maharal’s explanation of why it is that Man Dikapid Kapdinan Bahadei, only works for Zugos.
What is interesting, though, is that in the story of Rabba bar Nachmeini, the guy chasing him drank Zugos and was affected. Obviously he wasn’t Makpid. (Maybe, since Rabba was Makpid it affected the people in his vicinity. That’s why the fellow knew that Rabba must be there — since Rabba was famously the one that was Makpid!)