Well, that's basically what Computer Science degrees started out as, right? An Electrical Engineering degree with a bunch of software related electives? Even now, at UC Berkeley for example, "EE/CS" majors can choose a set of courses that end up almost exactly matching what the "CS" majors take, with not necessarily more EE. It's really just a narrowing of the electives.
There are enough AI related courses available now at many schools that it seems useful to separate "more general Computer Science" from "a focus on Artificial Intelligence", and similarly I think there's room for a separate major in "Software Engineering" as opposed to theoretical computer science.
Many CS programs came out of Math departments (that was the case in my program).
To me, it's more a difference in degree than kind. To be effective with AI you basically need the equivalent of a CS degree anyway. The same isn't true with EE/CS.
For me this just looks equivalent to adding a new major for every sub field of electrical engineering. Signal processing, digital circuits, analog circuits ... truth is a CS major could go take the same classes and a computer engineering student could also.
I think there's just a (subjective) point where a field is different enough that it's worth distinguishing from the rest. I could see Signal Processing being a different major than Electrical Engineering, and digital circuits is basically Computer Engineering.
There are enough AI related courses available now at many schools that it seems useful to separate "more general Computer Science" from "a focus on Artificial Intelligence", and similarly I think there's room for a separate major in "Software Engineering" as opposed to theoretical computer science.