I think we have to be careful here, it's true that by calling pre flop we increase the chance of the fish coming along, but we have to realize that that way also let 2 players see the flop with a weaker range cheaply. If I have KK on the button I'm not sure I want to call and let UTG see the flop with A5s and fish on the BB with 78s.
Usually I never call KK pre flop there, I guess flatting AA is a lot better since villain's overall equity will be lower.
Other example, Hero opens BU AKo, fish flats SB, Reg squeezes BB, I don't like to flat here ("to bring on the fish"), we have a clearly +EV 4bet with AKo, I'm not sure we want to play a mwp here, even IP.