The Romans currently have more units than any other faction, and if you need archers/slingers there are always plenty of auxiliaries, so if the Imperial reforms were taken out (which IMHO they should be) the slots should be given to the ten new factions.
The Romans are also the most popular faction. Are they not? That's probably why they were given so many units (along with the fact that there is more material about the Romans than any other nation of that time.
Bookmarks