I thought the comment was for R5 1600 which is close to my R5 2600 and those Intels were close in performance. Checked specs of them and I see they are not, also thought that i5 6600K was 4/8. In this case, yeah, upgrade probably was more than noticeable.
The idea I suppose is that supply will not change. Imported products will be just magically replaced by local produce