Why is the Voynich Manuscript Still Undeciphered ?

[Koen G]

I think sample size in isolation wouldn't help us much. Imagine if we had a second text in this script - how different would things be? I guess it depends. Imagine the Voynich all in typical Currier A and the hypothetical second document all in typical Currier B. In that case we wouldn't be one bit closer to a solution. (Maybe we'd be even further?) And what if we had 20 more documents, Currier A all the way through to Currier Z. I don't see how this would help. 

I think the first point, more context, would certainly help. For example if it had been found in the town where it was made. Or if the drawings were recognizable as a copy from a known herbal. Such scenarios would give clearer avenues of attack. Therefore I think attempts at contextualization, however small, are always a worthy effort.