Besides, what does the woman expect - "Bless her heart, she tried SO hard...." Or, maybe "Good intentions, wretched follow through..." Or the always blunt and ugly "not rehire-able!"
Sometimes you have to bite the bullet and understand that you're GOING to have a less than stellar reference from a job, because you didn't do well. Maybe you went out for the wrong job for you. Maybe you're the Village Idiot, all unknowing. Not every review or reference is going to be a good one. Pitching a fit because you're getting 'one of those' isn't going to change the fact that the company does not want to give you a truly wonderful reference, because for them, you weren't wonderful. Move on, woman, move on. Put yourself out of our misery.