Especially considering it isn't just Dahl, but also Dr. Suess, and Ian Fleming, and now
Agatha Christie, I'm wondering if there are copyright implications, or (if I can say this without sounds paranoid) motivations.
In the U.S., books from the era in question are generally subject to a 95 year copyright period. Because of that, in January, one or two Agatha Christie books usually pass into U.S. public domain. Do the changes discussed here reset that clock? And in Life + 70 countries, should the lead on the team which made the book more sensitive to modern ears AKA bowdlerized be a co-author resetting that clock?
I can see there being two versions soon, the free one based on the original and the copyrighted version purchased by schools and sensitive souls.