I'm not a huge fan of RMS as a person, he's an incredibly difficult individual and ideological to the point that he refuses to take even reasonable arguments into account.

On that topic though, I understood it to be an academic exercise, just a case of internal inquiry, and not a statement of personal motivation of any kind. I don't believe it is disgusting to objectively consider any concept without bias, even if I disagree with the consideration itself. Consideration of any ideas being off limits is indistinguishable from heresy.