I would advise some corrections and clarifications to this article. As you will be able to see, I have quite a bit of experience with VR. If nothing else, go read articles on all these HMD's on RoadToVR etc. and do a re-write!
Quest: You state that this HMD is restricted to the Oculus store, but this is not the case with "Link". I imagine you know this but because link is in Beta you didn't think to mention it but "Link" is a total game changer and should be discussed more in this article. In addition, as much as I hate them for it, Facebook has created a lot of really top grade VR games and made them Oculus Exclusive. They also continue to buy top VR game studios. This does add value to Oculus Quest and Rift S., though I hate to reward them for this behavior. Don't mention that without mentioning ReVive though, which makes most Oculus Exclusive games playable through SteamVR, and Pimax also has a built in system that makes Oculus games playable on Pimax HMD's.
Rift S: Probably should be on the list just for the price point and easy access to the Oculus exclusives, though again I hate to reward them for that BS. Don't neglect to mention the lack of a physical IPD adjustment though, that makes the "S" a no-go for a good 20%+ of users.
Pimax: Speaking of Pimax, throw them a bone and talk about the ultra wide FOV HMD's. Of course, that needs to be accompanied by info on the past build quality issues, very sketchy customer service, comfort issues, software issues, etc. but things do seem to be improving drastically with Pimax in most respects.
Index: Index is almost unanimously agreed to be by far the most comfortable HMD. You state that it is less comfortable than Vive Pro, which maybe for you it is but that is not the common opinion. Also you call it very heavy, which is not accurate. Quest is very heavy, Index is not.
You mention that the foam is glued on, but don't mention that you can pop off the facial interface effortlessly to wash it or that it's incredibly soft and comfortable.
Last, though I think people just like to complain, many complain about the need to set up Lighthouses so that shouldn't be totally glossed over. Lighthouse is my preference by far due to the extreme accuracy and reliability plus the ease of setup resulting from the fact that they don't need USB connections.
I also think the sound system deserves more than a mere mention, as it's so incredibly good that it's almost reason enough to buy Index all by itself! Comfort and audio quality are miles ahead of anything else. It's also the first "positional" audio that I am absolutely confident works.
Oculus Go: This HMD is basically now obsolete, as Oculus/Facebook has replaced it with Quest and officially announced it's being discontinued. This is particularly important given the repercussions it will have regarding new content.
Reverb: Reverb has the stiffest and most obtrusive cable, worst build quality, and the lenses are very blurry except near the center (small sweet spot). The FOV on Reverb is significantly smaller than advertised, this claim is easily backed up by simply looking at the size of the lenses compared to other HMD's that claim the same FOV as well as a simple side by side usage comparison. Your comments on controller tracking are a bit exaggerated. It's worth mentioning that the resolution advantage of Reverb is mostly considered worthwhile by flight simulator pilots, especially combat oriented ones who need to spot targets at a distance.
Reverb G2: Valve does not make the Vive headsets, HTC does. Valve makes Index, Index "knuckles" controllers, and IIRC the Lighthouse 2.0 base stations. The specs have been announced for Rerverb G2, and I believe the price was announced as well.
In the foreword, you also mention a few things that I think need to be cleared up.
PSVR. I think it's important to mention that PSVR has the lowest resolution of all the consumer HMD's. It does have lots of advantages in other ways, and a filter that makes the image look smoother than you would expect.
Pimax 8K X (and +). These HMD's are 4K per eye, everyone is always sure to point this out in articles as the name is very misleading. They look very promising, and I have one on order.
Cosmos. There is good reason to believe that any and all variations of Cosmos are going to continue to be terrible.