Yes, this seems to be such a tiny domain. If you know Maxwell's equations, you know all you need to know about EMI, pcb layout, RF, and more. If you know how to do something other than 'Datasheet Engineering' -- you know how to plan for part substitutions.

I'm trying to make the point that EE is a Fixed Domain, where one only needs to know a very small number of things to be an 'expert' in said domain. This is not the case for CS, which is, basically, all of mathematics that can possibly be applied to computers.

EEs will be one of the first technical professions to be replaced by robots & AI when AI moves up to white collar professions. Mark. My. Words. ;-)