No, not at all.
I am being told that a heat pump is most eff at 40-45 degree's and your chart seems to suport this with the balance point being at 30. So to me this means that if you live in a climate that has an avg below that during the winter you should not have a HP.
Systems can be set up so that the heat strips can work with the pump simultanteously. (Strips cycle on and off to maintain setpoint)
General public's attitude towards our energy predicament: "I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"