The main reason they only listen to classical music and cite Shakespeare is that it was cheaper to do, isn't it? Same reason why Picard played Dixon Hill, and not Dixon Steele, and Paris played Captain Proton instead of Buck Rogers or Flash Gordon. Every time they did that, I cringed just as much as when I see a kid playing with Mega Bloks or Klix instead of LEGO.
Abramstrek is the first time they incorporated a roughly contemporary song, simply because they were willing to pay for the license.
Good point. And they thought that Sherlock Holmes was public-domain . . ..