Carrier infinity 25vna heat pump utility curtailment
Only your utility knows what their requirements are specifically.  You may be best getting a different person there to look at your situation.  We have had rebates offered here in Connecticut for ductless heat pumps and as I recall homes that had baseboard heat were disqualified.  But that was without utility regulation.  I suspect you have a case if you can control the built-in strip heaters as long as the Infinity heats a major portion of the house.  For example all but a three season room or mud room.  Be patient and ask questions.