Caporegime
That's how I see it at the moment at least. The fact that Vega was demonstrated in December and almost 5 months later we've seen no performance numbers is also not a good sign IMO (look at how they showed off Ryzen, giving us actual benchmark numbers well before release etc).
Ryzen wasn't shown running any games though, which we now know why, it was only shown running Cinebench, Vega has only been shown running Vulkan, and Dx12, we havn't seen it running what about 99% of games are using, and are still going to use, for quite some time to come, take from that what you will