This is, yet again, bizarrely overstated, and definitely wrong. You get exactly that level of movement with TrackIR support on foot. There's literally no need to bring VR into it at all.
Source: https://www.youtube.com/watch?v=lScSpBPACsg&t=210s
Although honestly, you'd think the devs saying they have
no plans to work on VR until Vulkan is in would be a bit of a hint on this front. That perhaps, just perhaps, you're just wrong on this Trepid
If you want to talk in broad generics: Imagining functionality that isn't there, and isn't likely to be for the foreseeable, doesn't help recommend the game to people either. It recommends a game that doesn't exist yet

. (And genuinely may never exist, with regards to VR support.)