Meg please try to be objective and follow logical discourse.
The fact it was or wasn't condemned has no importance.
No importance to you, but I'll say what I like in defense of the Papacy, and against SVism.
No, it is objectively non important.
The best that can be said regarding St. Athanasius and the Popes reigning during his time is he didn't condemn them, and he had no reason to even do so as they were not even Arian.
You can set up a strawman, by saying they failed to condemn Arianism (allegedly), so it's the same as V:II antipopes, but it would be just that.
As they did not fail to condemn something but were actually the promoters themselves of novelties/heresies.
You
can technically say whatever you please,
lie even, if you feel like it, still doesn't change anything.