Just out of interest in the general theme of competing histories... What are the crucial incompatibilities between SF:Y1 and the ENT RW novels?
For the tech nitpickers, it's easy to point out that Friedman describes starship classes that differ from the ones in ENT or the ENT novels, and ignores those other classes. OTOH, he also describes a closed set of characters operating those ships, so it shouldn't be impossible to think that all the other ship types (canonical, ENT novel, older novel etc.) exist in the background while the SF:Y1 heroes concentrate on their specific tools of trade. Similarly, one could write a WWII novel about people who fly Beaufighters as if no other plane ever took part in the war...
Getting deeper into the nuances, Friedman describes the development of the Daedalus class as an exploration vessel after the war. This need not contradict the ENT idea that the Daedalus is an old ship type, though - because in ENT, this type never did any exploring. The Friedman scenes would be the government-level equivalent to the work done on turning the retired minesweeper BYMS-2026 into the oceanographic vessel Calypso...
For the general continuity hawks, Friedman has his own set of Earth political leaders, not related to those of preceding novels/fanfic/RPG nor later referenced in the ENT RW books. But we can argue that the Friedman "President Littlejohn of the United Earth" could exist in parallel with the ENT "Prime Minister Samuels of the UE" - plenty of governments today have both a President and a Prime Minister at the top of the executive power structure.
FWIW, in my native Finland, we used to have a powerful executive President like the US or French ones, with a puppet Prime Minister, but once we got rid of an annoying president-for-almost-life who really overstayed his welcome, everybody agreed on gradually stripping the President of his or her powers until we've reached a situation where the President is ceremonial (much as in, say, Germany or Switzerland) and the Prime Minister holds the executive power under strong parliamentary control (in the classic British fashion). The next logical step would be to drop the President concept altogether - which may have happened to United Earth after the Romulan War.
Or then the UE retains the President position, but it's symbolic and ignored and unrelated to the decisionmaking that takes place in the novels dealing with Earth. Or, even, the UE President position is blended into the UFP President one, depriving Earth of a "true" head of state but OTOH giving it symbolic access to the very highest seat of power (which would in turn fit well with what we see in "Homefront"/"Paradise Lost").
Friedman gives precious little storytelling time to the possible alien allies of Earth. But surely that's a valid way to describe a joint fight; the heroes we follow might even represent a bitter group that feels it's fighting the war all alone, much like their descendant in "Balance of Terror" seems to feel the Vulcans did nothing positive in the old war.
What else is "wrong" about the Friedman book?
Timo Saloniemi