You got me on that too. A high enough % of the languages pass stuff by value (C/C++), copy on assignment (C++, D, I'm sure there are more), or do not have the concept of references or changes to start with (Prolog, Haskell).
Anyway, if you want to bias it into Python, go for it. It's a fun quiz.
Anyway, if you want to bias it into Python, go for it. It's a fun quiz.