Equating reverse engineering to espionage? Not true at all.
Car analogy time. If the car maker uses a strange lock nut on the wheels, it is hardly espionage if I create my own socket so I can change the wheels myself.
Perhaps a bit closer, if I wire a logic analyzer and recorder to the computer access port on my car before taking it in to the mechanic, and use that data to reverse engineer the car's computer protocol...that still isn't espionage. The car belongs to me. I own it.
Now software companies claim you only license their software. But you own the hardware. It is yours. Observing what your own hardware is doing and recording data passing over the network cables that you own can hardly be espionage.
It's like claiming that recording your own telephone conversations is espionage.