This is AMD we are talking about. They will manage to cripple themselves somewhere, even though their CPU team is on the roll. I remember when Vega looked like a home run, there was no way it will be slower than 1080ti, just impossible, seeing all the improvements done on paper...
Intel is already where it doesn't want to be. AMD is pushing them from all angles. AMD jumping to 16 cores on mainstream will not have any benefits for AMD. Bragging right are already there with Threadripper. If AMD didn't have Threadripper, then yes, fire away with 16 core AM4 chip to claim top dog. Especially if software was halfway there to use them threads.