Yes, now it would, but when we built our home in 1985, that's what the power company in our area was promoting, and giving low off peak rates for using it over night as an incentive. I asked them what they did if a customers resistance wire were to burn out for some reason, as I had heard had happened before, and they said "switch to baseboard, or forced air".
It was kind of novel idea then, but we decided we didn't want to be dependent on one source of power for our heat, so installed tubing under the slab, a foot on center, in a foot deep sand bed underneath of which is a two inch layer of foam insulation to act as a thermal break. There are four zones, all of which begin and end in the utility room, with no joints in the tubing beneath the slab. Initially, in my days of boundless energy, and a relatively endless supply of wood for that use in our 6 acres of forest, I heated the water with a wood boiler, but as the years went by, and that boundless energy began to find it's limitations, we eventually converted the system to a geothermal heat pump, and haven't looked back. Now the only wood we burn is in our fireplace, which with it's outside air feed, and airtight clear ceramic glass doors did successfully heat the house one mild winter when our heat pump died in mid December, and it took three months to get a new one built and installed. We kept warm, but missed the warm floors a lot. I don't think they ever got to 85 degrees though, usually in the 70's.
Sounds like a great setup!