I speak and write a lot about the game's balance. And while I do think lot's of tweaks should be made to DoW3, I think the balance is still overall very good.
The majority of players problems (including me) is tightening their play - not blobbing, harassing non-LP points, not wasting units/resources, building the appropriate unit comp. vs your opponent, etc. The imbalances are small and, as such, are more exacerbated at high levels of play - and even still mostly in 1v1s.
Any changes to balance should be small - especially because, imo, there are quite a bit of erroneous opinions and misconceptions about balance on this site (and so Relic may over nerf/buff a unit that didn't need it). And yes, this also applies to Orkz.