That Chevy sounds more integrated than what we have. Ours is truly a factory "aftermarket" system. An add-on if you will. So it is not as well integrated.
Regarding the defrosters turning on, that doesn't happen even if you start the car with the fob in it. Requires a manual push of the front and rear defroster buttons. So the operation with remote start is no different. I agree it's a pain to have to remember to leave the windshield defroster button pushed. There is no way to have the rear defroster start automatically. Or the seat heaters

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