Your examples are a far cry from EMP. Modern transducers are not nearly as fragile as you think.
Just how much generating power do you think a Russian fighter can muster?
You are selling the AEGIS designers short.
Well, let us hope they do not rely on Microsoft windows and are multithreading and backing up their system in multiple redundancy. Because the physical removal of key datas the system expect is exactly what a hacking crash concept would work from a SU24 platform. They do not need to hack the system, just have it crash and hack itself.