The problem with this type of encoding can already be seen in a simple letter frequency analysis. The frequency distribution is far too even. Although this is an advantage from a cryptographic point of view, it does not correspond to the distribution in the VMS. The VMS corresponds more to the Latin text before encryption.
Distribution in the Latin text:
Distribution after encryption:
Distribution in the VMS:
Distribution in the Latin text:
Distribution after encryption:
Distribution in the VMS:

