I haven't read the full article, but isn't this exactly what they're doing?
This obsession with removing film noise is precisely the reason everything looks so oily and fake(-ish).
That film iso noise should not be considered a fault in image quality. It can not be dealt with properly anyway, not yet at least. The pixels always end up visibly dilated when tring to remove it in post.
Yeah, some one somewhere sold these guys the idea that "modern" audiences HATE film grain, so they go through ridiculous lengths to strip it away. But who is the audience for a 4k of 30-40 year old films? It ain't 20 year olds, its old guys like us that REMEMBER and APPRECIATE the grain, the flubs, the matte effects, the boom mic in the frame, cigarette burns, dust, all that stuff.
It must be data from streaming sites that suggest film grain is seen as a "ugh, old film", kind of like how black&white was seen as a negative once, with those atrocious colorization attempts. They are trying to compete visually with the ultra clean, but (to my eyes) soulless cinematography of today. Or maybe the compression algorithms they use to keep streaming bandwidth as low as possible gets tripped up on grain, so they encourage remasters to get rid of it?