That's a pretty realistic expectation if you ask me personally and I am for sure 100% with you on the CPU. The CPU was already out of date when PS4 Launched in 2013 imo, honestly the consoles we're quite weak if you compared them to the PC counterparts. Unlike the 360/PS3 generation where both of those machines were actually quite a match for a higher end pc. Obviously, times have changed quite a bit.
The problem was that everyone overestimated the abilities of multithreading. It’s completely bizarre that AMD, MS, and Sony all got it so wrong.