I have never seen anything that suggests that FTTPoD is for business premises only. I was under the impression that if your pockets were big enough ad you were on the appropriate exchange then you could get FTTPoD to a residential property.

Yes - FTTPoD is available to "anyone" who can afford it on an FTTC cab that is in a FTTPoD area.

Which retailers choose to sell it and whether it is deemed as a "business product" is just words at the end of the day.

Try asking another one.