Without commenting on what's better or worse, note that the copyright holders are not censoring their own words. They're censoring the words of someone who died decades ago in books that are several generations old, and it's the government that says no one else is allowed to publish the originals. Granting exclusive rights to publish and modify the works several generations after they were written is government censorship. In this case the censored books become completely illegal to publish as well rather than simply unavailable in government libraries.

(Feel free to substitute the situation with Dr Seuss books if Dahl isn't a fit because that organization also publishes originals, but even if the originals were still available, derived works are also censored)