They should have never let themselves get to that place to begin with, but it's not the company's fault, so they shouldn't punish the company. They should own their mistake and push through. Or don't, and realize that it may come back to bite them. And if it does, they should realize that they are solely to blame.
And yes, I've been there. Burnt out, depressed, you name it. It's always possible to muster up the energy to do the right thing.