Not to mention the decision between more slower cores or less faster cores is a tough calculus for the market. For most use cases you want faster cores, even if you get less of them. Is this why we're seeing lackluster sales projections? Not sure, but its a concern. No gamer I know is lusting after the Ryzen. They want the faster per core i7. No Vmware admins I know want to migrate architectures unless they absolutely have to and Zen isn't that compelling right now. It might be with a price drop or faster per core performance.

Ryzen is a good chip, but it may not be terribly competitive outside of edge cases, specialist builds, or as typical with AMD, budget builds with binned chips with failed cores sold as 3 or 4 core versions.