Might have also been included because Malbolge is included in a listicle that is the top search result for "weird programming languages." I wouldn't be surprised if show writers did a search for something close to that phrase, found the article, immediately got the literary reference and included it in the show for that reason.

Also, you probably can't say brainfuck on daytime TV. None of the other languages had interesting names, i.e., glass, whitespace, chicken, lolcode.

Edit: They've probably done something similar with other technical topics, but we don't watch the show to know. Such as, having a rocket scientist on the show talking about building rocket recovery wadding or something after looking through a GIS for "rocket parts."