Should VR Headsets be Agnostic?

It is now over 12-months from the launch of both the PC based VR head-mounted displays (HMD's) and we have seen an ever-growing gulf regarding the "exclusivity" of only being able to play one game or another on either of the respective systems.
At the same time, we have seen a feud in the VR community towards supporting one side of the fence or the other - levels of animosity that have gotten seriously out of control, to the point that the ex-founder of OVR has supported a device that allows games to be played on an alternative platform.
My personal feeling was always that HMD's should be looked at as just "televisions"
Should VR headsets be agnostic?
[*Note – for some of you that are too young to remember RCA (television manufacturer) who also acquired a stake in a television broadcaster and tried to have the channel only supply color TV to RCA devices inorder to own the market; but only ended up crippling early adoption of color TV in the market.]