I have ran switches in front of Ku motors before and didn't have any problems with it. I also put a milliamp meter inline to see how much current the motor pulled when running. The motor running does not draw much current when running, something like 50-100 milliamps. But you may see a brief spike around 200-350 milliamps when the motor starts a 1.2 meter dish on the lowest end of the satellite arc. The bottom line is these types of motors just don't draw as much current as some think they do.

And I also agree that the motor should not have a switch between it and the receiver. But this is a hobby and things are not always done the way they are supposed to be.