I think the books should also explore more instances where the Federation's high-minded ideals become an impediment and result in a few losses, not just in terms of lives but also in terms of political power, economic power etc. in the coming struggle against the Typhon Pact.
alone would make the WHOLE series worthwhile, IMHO!
Have the UFP--and President Bacco--do some soul-searching, question the "values" which turn out to be more harm than good....
After all...as "In The Pale Moonlight" made clear...soul-searching (or, in writer-speak, "internal conflict") is good for drama.