Was crisp, uniform, beautiful optical clarity a widespread expectation? I could've cleared that up for everyone right away, haha. I have tons of hands-on experience with all the major VR options and I first used the CV1 almost a year ago now, and I don't sign NDAs.
They all have IQ issues to varying degrees. Overall out of the first gen consumer edition HMDs the Oculus CV1 I found to be the least optically distracting due to the lack of SDE. The Vive had visible SDE but I would adjust to it quickly in any given experience and it didn't affect UI legibility or anything drastic like SDE would definitely do on the DK-era stuff, and the Vive was otherwise fine.
I mean, the DK1 is like a vaseline smeared CRT with magnifying glasses on top and a vomit induction device attached, you'd be lucky if you could read text on a hundred foot font size, but the thing still managed to pull off that baseline of effective VR immersion so you knew the potential of the technology and what it meant to have your brained fooled with sensory replacement, and I'd show it off to people on the regular but I certainly damn well didn't want to use the thing regularly myself. DK2 was a big step up but not enough for me to be willing to use it on a regular basis as the SDE in particular was ludicrous.
CV1 from everything I've used on it has been a solid first gen consumer-level product. Certainly you won't want to, like, watch regular full length movies on these things or anything silly like some people seem to expect to want to do. It's not a replacement for your TV whatsoever, you'll want to take it off when you're not directly in a VR experience, you'll want to take regular breaks, etc.etc.
That being said, not dismissing the problems people are having with their new retail Rifts and these issues could very well not have been present in the pre-release demo models, or the experiences could have been tailored to avoid highlighting the deficiencies whenever possible, etc. etc.
Regardless, I've found that the display quality of a HMD is not suuuuper critical to hitting that all-important threshold of VR immersion, and as long as you're not getting sick and you can actually read UI elements and so forth the rest falls into place.