You need to clear snow from ANY windshield, period. The exact same thing would happen to any car. And you also need to heat the windshield first, before operating the wipers, to prevent the wipers' frozen rubber strip from ripping off. And even throw some warm (not hot) water to the windshield, to make sure water doesn't freeze on the windshield anymore. When parked outside, you just can't take off like if the car was in a garage. You need to take the time to make it road worthy.
This is not the case with the Palisade - coming from someone that owns one and loves it.
In a bad snowstorm, even if ENTIRELY cleared, the snow builds up while driving and will shut off the wipers. It's happened to me twice.