I agree with Yondaime. Od course it is tempting to be the best army, but I personally aim to be on par with newer releases. For example NH (which is not in the best spot as well) have the same deep strike like ours, but on 10+ charge automatically attacks. Retributors on paper looks good, but in reality they never was game changer for me. 1 protector can technically kill frost lord, but it's too gimmicky. SCE is cool army, with cool lore and cool models. I just like that their rules would be on par with lore, especially older, forgotten units.
It's really no fun to play my vanguards or paladins against Tzeentch and be obliterated in second turn, or get stuck in fight with 20 pink horrors for whole battle. I know, I can play other army, or better list, but then what is the purpose for the most of SCE range? Don't get me wrong. I'm not ranting, I will play them no matter what. It would be nice to have some more fun. Isn't it what is all about?