Why are there "Voynichese" words mixed in?

[Jorge_Stolfi]

I'm interested in peoples ideas. 
Why, in writing which we can't even decipher the "plain text" are "voynichese words" added?

Page You are not allowed to view links. Register or Login to view. once suffered a water spill that covered most of the page, including most of the written text at the top.  This spill is practically invisible in visible-light images, but its edges are quite evident (A) in the UV image from the 2010(?) multi-spectral scan:
   
So my theory is that the text on that page was all in Voynichese originally, but most of it was erased by the spill, and probably by the water being wiped off (instead of gently blotted up).  I believe that only those two words in the last line survived that incident; of the rest, only scattered and very faint traces remained.

Then someone -- the Clumsy Cleaner himself, or a later owner -- tried to restore the lost writing. But he did not know the Voynichese alphabet, thus he would in most cases "restore" a Voynichese glyph as a Latin letter in "Germanic" writing.  That must be why we can recognize many of the letters, and maybe some isolated words, but we cannot identify the language of infer the meaning: because there is neither.

The "Latin script" on f17r (and the partly erased Voynichese words in it) may have a similar origin.  There is a water stain right over that writing, that also affected many pages before and after that one.  The spill happened after the painting, and it visibly softened any original brown writing/drawing ink it came in contact with (see the flowers on f17v, for example).  If someone wiped off the water from f17r, the writing would have come off with it.

All the best, --stolfi