You will get a lot of "told you so" from both sides of the argument as the results swing depending on the dev team, but, minimizing the importance of the CPU is simply a "narrative" that a lot of people will fall for.
For me personally, a "best in class" gaming machine shouldn't rely on a CPU that is several generations behind already, especially if you consider that most people who buy these boxes will keep them for at least 4-5 years, at which point that Zen2 CPU will be 10 years old!