Well?
I dont think so. As I recall mods that change the emblems have a tendency of screwing up the scripts in DeI but I also remember that there might be a solution to the problem though I cannot remember exactly what it was.
I use them since 0.8x and nothing went wrong 'till now![]()
If I remember correctly, faction emblem mods cause a problem with Athens, because in vanilla they have the same military group as Syracuse. That's different in DeI, so there might be an issue with recruiting units as Athens.
I've used it before and not had any problems (or at least none that I could attribute to it directly), but I was told to stay away from Athens because it breaks the scripts. I'm not using it currently, though.