This is largely pretty subgenre specific, though. For tech-death the robotic sound of quantized perfection is often a stylistic choice, it's literally a part of the appeal of the music for some people. (An obvious example is Archspire, not my cup of tea, but some people love that production style.)
I don't really hear the same thing as much in doom, black, or more extreme death variants.
Yeah I'd love to see/hear some examples here; I mostly listen to small-to-mid-level black/doom/trad/power bands and haven't noticed this type of standardization of sound.
It's possible I don't have the ear for it though, so now I wish the article had posted how it made this type of analysis so I could run some of my albums through it myself.