From a sales and marketing perspective, 'Car & Driver' is correct. Land Rover is in no position to release a vehicle w/ limited appeal. They have very few models and are currently trying to redeem themselves from the image of having unreliable vehicles w/ antiquated technology. Scrictly from a corporate vantage, the last thing they need is to bring to market another VX.
I don't really think the logic of the remark is sound because they are comparing apples to oranges. From what I've ever heard, the VX was never meant to be a large-scale production vehicle, or main revenue producer like the few models in the Land Rover line are meant to be.