The cities in green in the lyrics get marks, the ones in white don't, and I'm not sure why.

Initially I thought it was because it wasn't clear which city was meant, but several that were missed are fairly clear imo, like Cadillac, MI or Opa-Locka, FL. Plus they chose a springfield, despite that one having so many options.

I noticed Opa-locka (Miami-Dade area) as well and a couple of others.

They put that one on Catalina Arizona. There's ambiguity, so the illustration has to pick one.