So? What about incandescent lights in the house that are much closer to tungsten than daylight... and most lighting intended for home use is going to match that, not daylight too...

And remember that HMI, which gets a lot of use on the bigger movie sets, is closer to daylight balance. Phosphor-based and tri-color technologies (cold cathode, florescent, LEDs) can be set to whatever color balance you want. I suspect that they'll stick with tungsten balance until they stop using film and probably beyond, simply because that's what people are used to dealing with.