I mean, okay sure, but modify the counterexample they suggested slightly and then it's the same thing.
If GM promised to "rent out" (instead of buy back) the cars it sold to Hertz as a backstop (if not enough customers are renting), then the comparison is apt.
If GM promised to "rent out" (instead of buy back) the cars it sold to Hertz as a backstop (if not enough customers are renting), then the comparison is apt.