Too Harsh!
Ok, I agree with probably all the points in the editorial but I still have hope that 3D doesn't go away. As you mentioned, it makes much more sense for gaming where much of the underlying gaming architecture is "relatively" easily rendered in 3D. As a lightweight gamer, that has enormous attraction for me. I can't imagine how scary something like a first person shooter would be in 3D. Or how exciting a simulator could be.
As far as movies go, I do think that post conversion is basically a waste of effort but movie making technology should make filming in 3D much easier in the near future. I would imagine that it is simple to flatten an existing 3D film for 2D showings. Also, most animation (well, Pixar) is created in a 3D space so it's a re-render for some good quality stuff there.
Some of the points raised about visual issues are more of a bleeding edge problem on par with single speed DLP color wheels and rainbows. Does it suck, yeah, will it get better in short time, yeah, will some people still complain, hell yeah.
A lot of this is a chicken and the egg problem in the content front with consumers being asked to bear the burden for limited payback at the present. I do know that my wife is a huge Avatar fan and has given me carte blanche to buy the first 3D projector that comes out for Avatar alone. Trust me, that's a remarkable endorsement. Even if Avatar were the only 3D movie we owned, I think she would be happy. So, when the first semi-decent 1080P projector is released, I will likely be making that upgrade with her blessing. Which is weird...
My point is, the justifications aren't really here yet but I have hope that this will not go the way of the dodo but will rather be the beginning of a beautful friendship. Of course, I invested in HD-DVD because I thought it was a superior solution so keep that in mind