Knowing Relics history of balance.... well, lets just say I don't expect much balance of them in regards to anything.
Vanila factions were equally broken as DLC ones, only difference here is vanila were balanced a bit already when DLCs released.
Just look at any single relic RTS, doesn't matter if base or DLC factions, they ALL were broken op.
My comment was not about being "broken" in a sense that the faction has bad designs, not enough viable strategies etc, but in the sense that they were designed to be too strong on purpose to generate a higher perceived value for the players.
Design issues are often fixable and I can forgive that. Even our current balance team with years of experience in the game has to correct their own changes sometimes because even they can't foresee all consequences, but exploiting players like that is not forgivable.
Relic/Sega won't see a single penny or any support from me if this should become the case, and I hope that the players will "vote" like this as well.