The whole point of settling is to end legal action. Admitting wrongdoing will be used as evidence against them by others who weren't party to the original suit. Any future suits will have far higher settlement costs, if plaintiffs are even willing to settle, since there's an admission of guilt right there.
You can thank the plaintiffs and their lawyers for accepting the settlement instead of pursuing a judicial remedy such as an injunction or finding of illegal behavior.
It is going to be tough to get me to think the plaintiff is responsible for John Deere the company continuing to be dickheads.
When I hear these kinds of "blame the consumer" apologetics it never resonates with me - I'm just not going to get on board with some hypothetical natural state where corporations are inherently bad like some sort of sick animal and it's on consumers to sacrifice and plan with care in order to help the rest of society deal with them.
Corporations are just big groups of people. If their victims can choose self sacrifice in order to help the group then the corporation people could just as easily do the same and that feels far more just to me.