A card being weak to some doesn't mean auto counter. The reason Gardevoir is good is it doesn't need outside help to get going. All you need a basic energy and DCE and you're ready to go where you have to have Magnezone and something else to attack and a way to recover energy. We are in global agreement that Newgaleo will be the nail in the coffin but that is being pushed back so right now we have a bunch metal attackers that need something else to be good or usable. It's why I said to really think about that answer.
Zebstrika was a hard counter, just like this Buzzwole. Newgaleo is a hard counter but is being pushed back. Nothing has really strikes me as that kind of hard counter. They are just metal Pokemon that Gardevoir happens to be weak to. While I agree that all the metal Pokemon being revealed is intimidating and something to be worried about if you're a Gardy player but that is all it is, intimidating. People said Gardy was dead when Registeel and kartana came out. Where are they now? The best current counter to it is Cobalion and even then you have to be three Prize cards down.
Putting ego aside and the need to just agree, what do any of these new metal Pokemon not Newgaleo actually do to Gardevoir? Gardevoir is a lot like Volcanion. it doesn't care about its matchups much. At the end of the day, no one knows how this will affect Gardy's matchups. Plus, Volcanion is always a thing, which indirectly buffs Gardevoir because fire is a bad weakness to have.
