The New York Mets aren't like most teams. The benefit from Steve Cohen's deep pockets, and they really are in a class with only the Los Angeles Dodgers in terms of spending power. But even seemingly endless piles of money have a limit, if not financial, then due to the nature of the limited roster spots allotted to each big league team.
So while yes, the Mets can outspend a mistake more than a small market team, that doesn't mean that they can throw caution to the wind with their expenditures. It also means the mistakes of the past can still be anchors, even if they have more of a buffer than most.