Self-explanatory.
It only makes sense all non troop specific talents will be universalised. I.e. versatility, conquest, skill, smite, combo etc while cav only reducing skill dmg makes sense.
As for balancing rallies and garrisons, it’s the perfect time since inf’s gorgo is old, archers dont have a good garrison and cavs are so utterly countered by ivar it should be rebalanced.