I said at the time, if you're going to go with that type of advertising, you'd better totally crush the competition, or you look stupid and that you lied to your customers.
Dunno about lied to customers I think most people took it as a bit of a jab at nVidia rather than a commitment/promise - but the way they've handled PR over Vega IMO is pretty insulting towards their loyal customer base. If they are going to make a jibe like that they atleast need something that is reasonably competitive.
I really hope they do pull something out of the bag as it seems nVidia can already produce working Volta cards on 12FF risk production which likely puts them in a strong position for being able to produce next generation cards after Pascal or very optimised Pascal cards if they want and well on the road towards single digit nodes.