I don't so it was a genuine question, checking if my understanding was correct. I guess it's more about the CL aspect.
From the article "Richard Stallman is not a fan of Common Lisp; rewriting Emacs using it is not likely to go far." My understanding is his preferences have a strong influence on emacs direction, which of course is well deserved, but he can be stubborn about things. I used "stallman factor" because it's not easy to sum up, as his strong opinions and influence on the project are both not bad things (even when I disagree with him I feel it's important to have someone like him) but they do prevent some avenues for improvement. Happy to be wrong about this.
