If anyone is saying VR is ‘eye candy’ they might as well say having a monitor is eye candy. If you play the game in VR then its the medium through which you experience the sim.
VR is very much a niche thing at the moment but it is finally coming of age. Asobo and Microsoft have said they intend to support the sim for the next 10 years. With the rate VR technology is advancing and coming down in price it wouldn’t surprise me at all that VR becomes the dominant way people experience Flight Simulator, within that time frame. Flight and car racing simulators are the two things VR is absolutely made for.