Another way to interpret these changes is to expect housing to become more expensive as heat pumps are more expensive than using (existing) gas infrastructure.

Random anecdote: in New Jersey installing a Mitsubishi hyper-heat heat-pump in a 8 room house (4 bedroom + 2 bathroom + living room + kitchen) is much more expensive than running hot water baseboard in all rooms. And with most heat pumps you can usually only zone 4-6 heads per compressor, so you'd need two compressors. A single compressor is probably pulling 50 amps alone, so you'd need 100 amps available usually for your breakers. For reference, a normal house usually 100 amps dedicated for the entire house, not just HVAC. Drastic upgrades in electric infrastructure will be required.

Heat pumps heat more efficiently than gas, but I wouldn't be surprised to see in the near future some sort of rolling blackout and thousands of people freezing to death because we went all-in on electric. Will these buildings also have generators to combat this potential problem?

Ideally we could just use existing gas lines and another, man-made produced gas through the same lines that's carbon neutral or negative.

I'm excited to see the development of heat pumps, though. I'm not a huge fan of the forced-air heat pumps. I hope something like a radiator-heat-pump can be made soon.