Yes, I've heard about the same claims. I'm not a lawyer, so I'll let my legal colleagues speak on that.
What is the alternative to taking away citizenship? What about other countries, should they do that too? Where does it lead? There seems to be a race toward taking that away and the individual having to pay for it. It really means to say to someone, “You have no country”, and in a world of nation-states that is a harsh sentence.