Another one that Drank the Kool-Aid from Dish Propaganda..
Grounding IMHO actually creates more problems than it fixes.. Any outdoor connection is going to corrode. Which will create more problems than the ground helps..
Satellite installers did not invent the requirements for proper grounding. This is established by the NEC. The very first article in the NEC states that its purpose is to safeguard persons and property from hazards arising from the use of electricity.
Proper grounding is a very important aspect of this protection. There are three basic reasons for grounding:
1. To facilitate the operation of overcurrent devices such as fuses and circuit breakers by providing a low-impedance path from the point of a ground fault to the electrical supply source.
2. To stabilize the voltage to earth during normal operating conditions which helps to maintain the voltage at one level relative to ground.
3. To limit the voltage caused by lightning, line surges, or unintentional contact with higher voltage lines.
Ideally you want to ground all equipment back to one location, ie at your electrical service main grounding electrode. New homes are actually required to provide what's called an intersystem bonding termination which is basically a grounding block that provides one point for CATV, satellite dishes, telephone equipment, etc to be bonded to the electrical system ground.
My main point here is to take exception to the poster's statement that grounding causes more problems than it fixes. A properly grounded electrical system will minimize problems and help to protect you and your property.