Lumping in Carthage with some North African berber tribes is a pretty big fucking mistake as far as BELIEVABLE WORLDS is concerned. Same with Scythians and Persians or Etruscans and Romans. It just smacks of lazy design, most likely aimed at MP "balance" from the get-go.
e: Actually it's doubly lazy because they had already hashed out the various cultural and religious differences and possible bonuses for the game with CK2 for the most part.
The point is that this is the kind of thing Paradox can patch in 100 new ideas for in a month, then these idiots will go "OK, game's fixed, everything's great because now Rome gets an addition +10% heavy infantry discipline". Meanwhile actual core, unchangable gameplay issues stick around forever, potentially infecting later games like how mana from EU4 infected Imperator, despite virtually everyone agreeing that its awful.
I don't disagree with the general issue of a lack of favor, but Paradox wants to sell you that. Complaining about flavorless regions is effectively saying "yes, I want to buy the DLC Paradox has planned".