For Potemkin, you do realize Potemkin Buster is throw invul on start up, right? Not sure how you can say she can throw Potemkin in situations he would attempt to PB since it's throw invul.
In general, mid-screen to full-screen notes are bad against Eddie since they have easy ways of dealing with them.
As for Eddie, I'm not really sure what tools you're talking about that she can use to escape set ups. She doesn't have anything to escape unblockables or pressure, and Nobiru reaches up pretty far to prevent you from jumping away or advancing at all. Also, not hitting an FRC? Which FRC are you talking about? Drill FRC? That's the only FRC Eddie will use (maybe Damned Fang FRC, but that's rare to use and it's only usable when you get hit by it anyways so...), and even on block it's completely safe.