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Why wouldnt they be? Its vastly superior technology in almost every aspect.
But... But.... I've been assured by many old people that heat pumps are super inefficient, waste tons of electricity, and only work about 10 degrees from outside temps!
Surely these people wouldn't have lied or misrepresented the facts in order to support their own warped worldviews where renewable energy and efficiency measures are evil and Jesus wants them to shoot up power substations near solar projects...
.... I really need to move out of the Bible belt...
Why wouldn't they be?
In other news, single tap is better than 2 taps
In Sweden, heat pumps are the standard for new housing and a LOT of older houses get converted. It's totally normal. Either geothermal, exhaust air, air/water or air/air, almost all smaller houses have one of them. The exhaust air one is especially interesting becouse it's also a ventilation system. Being cheaper than geothermal, many house builders go for them.