No text, but a visual code

[nablator]

So, as I understand it, you are saying there is reason to believe it was impossible for Voynichese to split the words using the stem, because it never splits words in a way that produces pieces not seen on their own (say, splitting a||iin or e8||y). And also if you try to reassemble these words, they either don't exist in the MS or exist as separate words. Is this correct?

Yes, I would call it strong negative evidence and relatively weak positive evidence of splitting.