Let us grant that it _is_ a shorthand system. A shorthand system is a compression algorithm. The entropy of a compressed message is much greater than that of the same message, uncompressed (take a look at a zip file; if you like, uu-encode it and have MONKEY calculate its entropy).
The entropy of the VMs is very low. Therefore, if it is a shorthand, the shorthand is hidden inside a low-entropy text--perhaps glossolalia.