I think it's like a language family thing. If your familiar with a C-language (or more accurately, AGOL style) then looking at other C-languages isn't as alien to you. While looking at a LISP family language, it's a different language branch and so you have to learn some new ways of thinking, which can be disorienting.

Ex french & english vs french & indonesian. English and french can recognize words from each other and kind of see some similar grammar rules (the medicine vs. la médecine) while with indonesian those moments are not as frequent.