electronic music design isn't possible to engage in without a solid foundation in music theory, as using the software competently requires understanding how to read and write music, as that is how the software operates. midi is a system that transmits information about scored music; you need a score to use midi.
there's consequently not actually much of a difference in what's being taught. a basic music education using a midi keyboard would still require learning how to read music and apply music theory, you'd just be learning it in the context of the software that uses and in most cases requires that knowledge as a basic starting point.
i do two primary things as a musician. i am a guitarist, first, and that is what people want to see me as. but, when i write a piece of music, 90% of it is written as a score using written music, which is then played back using sequencers. that includes the drums (usually) and any synthesizer parts, but also includes parts written for orchestra, like string and horn parts. if i didn't know how to read music or didn't know anything about music theory, i wouldn't understand how to use the music software that generates the notes.
in that sense, it's actually more important to know basic music theory skills in the modern world of electronic music design than it was in a jazz or rock based world, where you didn't really actually need to know anything about music theory, you just had to have a good ear and be able to wing it. you can't improvise on a laptop in the same way as you can on a saxophone, you have to actually have some idea of what you're doing.