Voynichese is a numeric cipher?

[ololololo]

My point here is that when someone claims that some method produces a very good replica of Voynichese, this is based on their subjective assessment which may or may not be justified.

You're right

I'm talking about the version with nulls. Just looks very odd.

It is possible that there are not enough nulls at the moment, and they do not have any special rules for placement in the text (except for next to eor and or).
I was just thinking about it...