I don't see your numbers either....
It's common sense really. AM4 is new, so for PCIe SSD, you need platform upgrade. You need a need for 3GB/s+ storage. Supply issues. Can I buy AMD system via OEM? How many vendors? How many have a system I need? Is it in my price range? Is it better than my SATA SSD? Will I see the benefit right away?
AMD is not a household name. They don't have the market share. They don't drive the market. PCIe SSD's are overkill for 99% of consumers. Deal with it.
AMD has high core counts for cheap. Intel could have dropped their prices long ago, but they didn't, by choice. They weren't struggling like AMD has either. AMD isn't really doing anything special. They've always charged less for their stuff. Since they can't add any more cores to the Ryzen lineup, what's really going to show signs of longevity are their IPC and clock speed improvements going forward. AMD has always sucked at raising clock speeds in the past, so we'll see what happens.
If Zen 3 is awesome, I might buy it, but that doesn't mean I think AMD is in the clear. Not even close.