What is not true, if the exchange has FTTPoD listed then its an FTTC exchange anyway, there will be ADSL only addresses as they are too far away for FTTC and they will be able to order FTTPoD.
As mentioned by candlerb FTTPoD availability is entirely based on the serving cabinet having a fibre twin or not, regardless of whether you are too far from the cabinet to order FTTC.
If your cabinet doesn't offer FTTC then FTTPoD isn't an option.
Availability is being expanded beyond this requirement in March.
Multiple Dwelling Units are excluded from FTTPoD and I believe will remain excluded after March when availability is expanded.