It's been said a thousand times before and I'll say it again, maxing out camera speed is the equivalent of increasing mouse sensitivity. It does absolutely nothing to remove the delay, the camera continues to remain just slightly behind mouse controls.
Log into WoW and swivel the camera around. Then log into GW2 and swivel the camera around. If you don't notice an immediate difference in the amount of "responsiveness" of the camera between the two games then I'm afraid I can't do anything more to help explain the difference.
Also, I did mention that I'm used to GW2's camera now and it's not as much of a game-breaker as it was when I started
Motion judder is an artifact caused because movies are recorded at 24fps. Judder is non-existent in gaming because games aren't "recorded", they're played. There is no 3:2 pulldown conversion with computer monitors since all of them support atleast 60hz while many TV's are confined to 24-30hz. Also a bit off-topic, but I never notice any judder on my home TV because it uses 100hz smoothing/blurring to help "fill in" the gaps between frames (ta-da, judder gone!).
The article you linked really has no relevance to why 24 fps isn't enough in gaming. With gaming it's more about input lag and hand-eye reception (the link between controls and ingame movement/camera), things which don't apply to movies.
I think you're confusing "judder" with "stutter".