Here is why DR had VR in the first place, Oculus paid for the conversion I can’t give you a source because it was an email to CM. Thats why there wasn’t a Vive port or anything else. At the time Oculus was giving a lot of incentives to push VR and get games in it.
I love VR and haven’t really played that many Racing games in VR (I have a triple monitor RacePit) but I cannot play any flight sim without it. So while I think it SHOULD be there, I don’t think its a deal breaker, not yet.
Just my two cents