There is a significant amount of time between starting the development of a CPU die on a specific node and actually releasing the final product onto the market.

There is a significant amount of time between starting the development of a CPU die on a specific node and actually releasing the final product onto the market. This has already happened for Zen 4 on 5nm (so R&D/product development has moved to 5nm a long time ago) and the article is probably about Zen 5 (current gen is Zen 3 on 7nm).