Generally about proposed solutions

[tavie]

Champollion was not an outsider mocked by "official  science" until he achieved his goal. He was highly educated, studied under the best in the field, and was not seen as a "crank" in the way you seem to mean it. 

Perhaps you mean Ventris, who was more of an amateur, but he was not seen as a crank by "official science" either. 

Both Champollion and Ventris were conscious about mirages appearing in their work, and Ventris was very concerned about falling prey to solveritis and was one of his own biggest skeptics.  The average Voynich solver does not show this caution and self doubt.