Just a guess, but I think the answer may be in another post he links to. He wants to move to a tool that will work out of the box. He's deliberately moving away from an editing tool that is super-customized. That seems to be consistent with other changes he is making in his work habits. Personally, I can relate to this. I don't edit very often these days and each time I do it seems like I have to do a bunch of dot file and package maintenance.