I believe Doyle is talking about ring games.

One of the important things Doyle mentions is that he wants to be head's up against someone with AA or KK who likes to slowplay big pairs. This way, he is more likely to have the only straight or flush if it hits. And he is more likely to get cheap or free cards to draw to his big hands.

If you're trying to bust someone with these hands, I don't think you want to be 7-handed at the flop.