We'll see how Turin performs, should give us some more info whether 3nm would've helped or not.
I sense an XT version may do just that ... probably in a couple of years time.
They could do but don't forget they make SKUs based on demands from OEMs, not just enthusiasts. At the end of the day, if its not worse and potentially improves their operating costs then 'it's an improvement' as far as the AMD bean-counters are concerned.