Is a TAS filter required to be configured on each Org Group in GINV to pull into EBS?

Can someone please confirm whether the interfaces that pull Groups and TAS/BETC for Groups from GINV into EBS requires that a TAS filter be configured in GINV for every Org Group? In our testing to-date, we have found that Org Groups that do not have any TAS filter configured in GINV are not getting pulled into EBS, so the TAS is not available in the LOV on the POBL Line. It seems that if a TAS filter is configured at a higher level Org Group in GINV, that filter should apply to all subordinate levels in the hierarchy