Maybe one of the write ups of AMD's presentation at hot chips next week will have what you want.
To be honest, though, I don't see a substantial difference between the haswell article you linked and the Zen 2 article, provided you are willing to look past the AMD slides. The haswell article is also just "putting the presentation slides into words," just from IDF 2012 instead of AMD Tech Day 2019, and apparently the author felt a need to do the block diagrams themselves.
(Also, FWIW, Agner's manual does have a literature section for Ryzen, it is just not numbered for some reason).