> would any other marketing company have done the same as FuckJerry

Are you asking if ANY company would have done the same, or if EVERY company would do the same?

If it's the latter, there are many marketing agencies out there that want to market products that actually exist, and understand that marketing a scam is a potential PR nightmare, in addition to being unethical. Such companies will cancel a contract as soon as it becomes clear that the product cannot be delivered as advertised.