Just a slight interpretation of their satement: EPG has been provided for but has not been populated by most of the uplinkers / networks. RT and one other (AJE?) do have working EPGs but those are provided by the networks.
As an example none of the TBN networks provide an EPG; and could not provide one. (As of 6 weeks ago, when I last checked) They can not even provide one the their own network stations, even by internet or FAX! If you get one from D* or E* it is only a guess and from the published newsletter.
I don't see the guide on RT--did awhile back but no more. My local OTA TBN Networks all have an OTA guide shows up on my TV.