This is actually one of the main points of the article. He doesn't believe gaming is going to be the killer app for the reasons you cite - it actually
isn't that compelling, not nearly so much as people would think. But what
has changed his mind is that other applications
are compelling, in particular the potential for workspaces.
So we have a weird situation atm where huge numbers of people have generically written off VR because it didn't cut it for high end gaming with them, without ever even considering the alternatives. In my mind, these are fitness and professional use.
The fact is that I can go into VR to work today and its intolerable after a short period, but only because of factors I think will be solved within the space of a few years - the resolution is too low, the battery doesn't last long enough, it's too heavy and gets uncomfortable. These will all get solved. Once that happens, VR will be unambigously a better place to work for quite a wide cross section of activities. This is the "skating to where the puck will be" that tech companies need to focus on.