My heat pump shuts off when the CoP goes down to 1. I still have my electric baseboards from before so they kick in when the heat pump kicks out. Can't all heat

My heat pump shuts off when the CoP goes down to 1. I still have my electric baseboards from before so they kick in when the heat pump kicks out. Can't all heat pumps be configured to shut off like mine does? I live near Maine and have similar weather, and typically the heat pump only goes out for 3 to 5 nights and 1 or 2 days over the winter. The extra cost of a few days of EBB use is pretty minor compared to the savings throughout the other 362 days of the year.