well, its a proven thing in the fixed wing world, the chopper world is woefully behind in that area,
No, the problem is that helicopters are far more difficult to model than FW and although you can make a generic model, accurately reproducing a particular aircraft requires accurate data from a fully instrumented real aircraft and no-one is going to pay to explore VRS in an expensive helicopter.
VR is a great training tool for some things but it would suffer from the same issues - accurately reproducing handling qualities in hazardous scenarios.