I like s-expressions too, but --- and I'm asserting this without a shred of evidence, appealing to the better angels of your common sense --- most developers, Peter Norvig notably included, believe other languages benefit from having more notation. For one thing, to a point, increasing the level of notational "richness" of a language improves comprehensibility of code.
I don't see much there to suggest Norvig is a big fan of adding syntax to Lisp. In fact you could read "This seemed to satisfy the infix advocates" as an expression of the opposite viewpoint.
Reasonable people could disagree, unless/until Norvig clarifies, but I'm going to take his apparent conversion to Python as evidence that Norvig is not a sexpr fanatic.
