Agree. Warfare is too powerful- it's so good that every physical class maxes it before their respective counterpart (IE, you get huntsman high enough level to use your abilities but you max warfare first). Whenever that's the case you have a good candidate for a strong nerf. One good way to make elemental CC a bit better is to allow them to be stacked. IE, if you shock someone already stunned by electricity, it adds one turn to their CC. If this is too powerful, consider just doing an added damage bonus. Regardless, knocked down > stunned/frozen right now and it really shouldn't be considering magi have to set that up, get through magical resistances, get through magical armor and they do less overall damage already.
I also think because magi have to split their specialization more than physical damage dealers, every spell should benefit from putting points into a school of magic. As an example, putting a point into hydro might increase spell damage from all sources by 3%, water specifically by another 3% and magical armor restoration by it's current 5%. The overall scaling should be higher than physical scaling because there is no physical resistance whereas various elemental resistances are very common (too common).