They didnt say anything about it in their changes. They just said instead of spec credits orc will get elites credits. You must note that they cant be used to train specs. Not that it matters, but if your offence is fine and you need def, you still need money to train them.
If OMAC decided to change the rate at which credits were given to Orcs, then they should have written it in the changes as this would make the decision different to play them for people.