Most VBs launched on non metro routes are anyhow fast intercities. In reality too all these routes needed Intercities only.
Handful VBs like GNTR-MMCT, NDLS-BSB, NDLS-SVDK, HNZM-RKMP, MAS-MYS give a feel of proper VBs. Look at the number of un deserving stoppages on other VBs bringing down the end to end average speed too.