This is certainly true of heat pumps for houses. Our mitsubishi mini-splits use almost no energy in summer to cool the house, but they suck power like it's going out of style during winter. It costs us about $20 per month to cool during hot weather, and close to $400 month to heat in the coldest winter months. With solar panels however we typically start winter with a large credit with our power company and don't pay anything until around February.I concur with all you say.
My observation is that the heater is using far more energy today than the AC in the hottest of summer days.