I have a very, very tiny folding knife (less than an inch blade) on my keychain, and unless I’m flying somewhere, I always have that, and I suppose that that could cut a seatbelt, though I doubt that it’d be likely for the seatbelt to jam. No glass punch, though.
I’d assume that at a minimum, someone in the EU somewhere is at least looking into how they compromised the satellite network and re-securing it.