I too am amused by his opinion of JavaScript. A professor was moved enough to translate most of SICP to JavaScript and writes in its first chapter, "Above beyond these considerations, programming in JavaScript is great fun" [1]. I agree, and I'm enjoying going through this SICP/JS moreso than the original, as I can write solutions to the exercises in any old browser JavaScript console and paste them into a gist for safekeeping.
[1] http://www.comp.nus.edu.sg/~cs1101s/sicp/