The big question is, wether the server allows modified save games to be uploaded or if it sticks to a certain template. The devs say it'll be moddable, but to what extent? Will gameplay and/or campaign mods mess the save games if the server only accepts certain template?
We must keep in mind that this DRM wasnt invented for SHV, but for the bigger sellers that are coming out, most of which are unmoddable if you look at the earlier games in the series'.