Not to put words in other people's mouth but I believe he is more concerned with 'version of Lisp' than the 'statically-typed' part. It is kind of like saying

Not to put words in other people's mouth but I believe he is more concerned with 'version of Lisp' than the 'statically-typed' part. It is kind of like saying basic is an interpreted version of C. The two languages are more or less unrelated outside of the fact that both are impure functional programming languages.