Can't say I agree at all. I've used an iPhone 4S camera and my wife's Evo LTE 4G (HTC One X, i.e. the same camera in the 8x).
While I wished Windows Phone allowed for natural burst mode without having to open SmartShoot (on the One X, you just hold down the camera button and let it go as long you like), I'm seeing the same quality of pictures across each camera when it comes to daytime photos. In the case that the 920 falls a bit behind, I simply tap "Edit", then "Auto-Fix" and the image is usually brought right up to where it needs to be.
However, low light performance isn't just night-time photography. It means shooting indoors a lot of the time, frequently in fluorescent store or home lighting, and that's where a LOT of magic happens with my two young boys. Here, I've gotten a lot of shots that just would've been difficult to capture with the other two cameras.
Trust me, HTC HYPED that new camera module+ImageSense chip like crazy when they announced the One X showing "samples" of how it trounced the iPhone for light captured and picture clarity. I don't think anyone with a 8X or a One X would say this is the case, myself included. In my opinion, Nokia has finally fulfilled that promise. The video capture is also first rate, and all of my family members have remarked on how great the video and pictures of the kids is that I've sent out. I'm happy with it. They are. If Nokia can squeeze even more quality out of this module, great. But I think they already have one of the best shooters in the industry.
If anybody can honestly look at the medium-light, low-light and video samples of this camera and deem that it "sucks", I don't know what to tell them. The bright daytime stuff can be "fixed in post" as they say. What's the problem?