There were a lot of problems with the IMAX and WellGo titles falling out of sync, and suspect that had a lot more to do with their brief absence than any theories about "Giving up on no customer demand"--
If anything, Netflix customer demand seems to have kicked them in the pants about fixing it.
But they're only getting the IMAX'es, Asian titles and TV series from 3Net, and there hasn't seemed to be anything new exported out of 3Net for a while.
Unless they reconsider and give us the 3D versions of Cirque:Worlds or Turtle 2, this may be it for the time being. (And even less with "Rescue" and "Immortals" already expiring.)