You obviously have very strong opinions about SW's remixes and possibly about his work on the remix of KC's "Red" in particular. I'd be interested to know which version(s) of SW's remix you've heard as there is certainly some confusion about these.
In particular, the 40th Anniversary CD & DVD (2009) release I own contains only SW's multichannel remix and a couple of remixed bonus tracks i.e. the Trio versions of "Red" and "Fallen Angel". As far as I know, neither the CD nor the Stereo Hi-Res original album versions are SW remixes as I understand that the CD is in fact the 30th anniversary remaster.
SW's stereo remix was eventually released as part of a double CD in 2013 (although even then the 2 CDs were mixed up/mislabelled) and that it also appeared as Disc 21 in the 24 Disc in the rather expensive "Road to Red" boxset. I gather too that a HiRes version of SW's Stereo remix has made it to the R2R boxset on DVD and BluRay and I assume that it is this version that has been reviewed and that you've compared to your own vinyl copy.
Incidentally, I'm struggling to find the critical reviews to which you referred but quote an extract from the allaboutjazz site review of The Road to Red boxset which compares the SW 2013 remix to the 30th anniversary remaster
As Fripp continues to spearhead his 40th Anniversary Editions of the King Crimson catalogue, after The Road to Red's 20 CDs of live performances, the 21st CD, which includes Wilson and Fripp's new stereo remix of Red, provides an opportunity to compare and contrast with the 30th Anniversary edition.
Ultimately, how the two mixes measure up is really a matter of personal preference. As has been his approach all along—one that has both supporters and detractors—Wilson's new mix of Red is considerably cleaner, its more transparent layers and a broader stereo image still remaining reverent to the overall instrumental positioning of the original mix. The result is a remix that, in its pursuit of translucence, may not be quite as ballsy as the original, but possesses its own charms, especially on the introduction to "Fallen Angel," where the more clearly articulated layers make it an almost new experience. Bruford's drums are more equally balanced on "One More Red Nightmare," while on "Starless," with Fripp's buildup of a spartan single-note motif mirroring each chord of what is, at its core, a dark, brooding minor- keyed blues, Bruford's percussive layers and Wetton's increasingly thunderous bass assume greater dynamics and, ultimately, greater power.
For my own part, although "Red" is by no means my favourite KC album and I don't own a vinyl copy, I do have the 2009 CD/DVDA release and really enjoy SW's multichannel mix. Of course, SW is likely to have worked from digital transfers of the original multitrack tapes rather than the actual analogue master tapes and as far as I can see from the credits his multichannel mix was mastered outwith his control.
In any event, I think that any comparison between SW's digital remix or indeed the 30th anniversary remaster and the original vinyl would be like comparing apples and oranges but it was kind of you to offer.