Wigan was kind of the opposite of bottling, inasmuch that we didn't play our strongest side as we thought it would be a walk in the park. That's being punished for not taking your opponent seriously enough, rather than bottling the big occasion.
I don't think you can bottle a game that the rest of the country expects you to lose either. The big four were favourites to win each one of their home games against us for good reason. Bottling is when you fail due to not being able to handle the pressure of a game that is deemed important, it's not when you lose away against a superior team.