More recent comments by DBOBE suggest that, in his view, VR as a whole is niche: https://gamedaily.biz/article/194/david-braben-why-the-industry-needs-the-return-of-the-publisher
.... and any development time spent on VR is only applicable to one of the three supported platforms.
I've always thought Braben talks a lot of sense (I saw him at the Expo too). But he is very blinkered when it comes to VR. It's still very early days for VR, and the devices are stupidly expensive (when you take into account the machine and everything else required). When that changes, I doubt VR will be niche at all.
And as far as I am aware, the only reason E: D had VR support from the outset was due to the KickStarter backers requesting it.