Happens all the time of every platform. It not too mad if a game is still only in pre-production or in early development, but when a developer has been working on a game for a couple of years and suddenly told the project is shelved that must really be upsetting for them. And to actually let a developer complete a project and then never release it commercially just doesn't make good business sense as the publisher would have been funding the developers expenses during the development so would be in negative equity by that point. Mad.