Yes, but they're having to actively use battery power to do that, instead of just passively using waste heat from the ICE engine. So this greatly reduces their range. It probably works out fine for them because the car's maximum range is probably much greater than their commute distance, so they probably have battery capacity to spare and burning some of it on heat isn't a big deal as it gets recharged at home every night (and maybe also at work). If they had more "range anxiety", however, they probably wouldn't be so eager.