Frontier really should be less aggressive with the expirations and promote the FF program as a major selling point, given what the legacy airlines have been doing to theirs. DL in particular is becoming a much worse value on redemptions, especially if they have basic economy as the basis for the lowest tier awards. Your $250 bargain transcon flight in BE might get 1K RDMs on DL for most people (taxes don't count on the 5X) and redemptions are opaque because of no chart, but realistically will go from 12-13K RT for a non-stop short haul to 31-39K for a transcon at a non-busy time, all in BE (so they make you pay for luggage). F9 is charge-for-everything including luggage but might well be 20K rather than 40K on the transcon award and better on the earn side, etc.

FF programs have been such a longtime advantage of legacies used against LCCs and ULCCs that maybe the LCCs/ULCCs don't realize the opportunity to turn the tables now. I get what they're trying to do with this pooling concept and trying to attract families in general, but unfortunately I think they'll create a lot of confusion with it. It also doesn't mix well with the aggressive expiration.