This is like when Apple introduces some new feature that existed on Android for years and claims it as some sort of revolutionary thing. In this case it's just that the mainstream US has discovered heat pumps when they have been mainstream in Europe for many years.
Millions of people have used them for years. They just weren’t as popular due to gas being cheaper and available everywhere. There’s been a bigger push the last 10 years as gas prices have gone up. So they’ve been there but it didn’t make sense to use. You have to remember that things like gas are much cheaper in the USA. There’s just more natural resources here.
