It's not at all obvious to me that the failure mode of not looking for a better move when you've found a good one is more common than the failure mode of spending too long looking for a better move when you've found a good one - in general, I think the consensus is that people who are willing to satisfice actually end up happier with their final decisions than people who spend too long maximising, but I agree that this doesn't apply in all areas, and that there are likely times when this would be useful advice.

In the particular example I gave, if you've already found a move that wins a rook, then it's all-but irrelevant if you're missing a better move that wins a queen, as winning a rook is already equivalent to winning the game, but there are obviously degrees of this (it's obviously not irrelevant if you settle for winning a pawn and miss checkmate). This suggests you should be careful how you define a "satisficing" solution, but not necessarily that satisficing is a bad strategy (in the extreme, if your "good move" is a forced checkmate, then it's obviously a waste of time to look for a "better move", whatever that might mean).