The theory that Nacho gets killed has not been Jossed, because the poster has confused Lalo with Ignacio. Also, even if that were not the case, the theory would not be Jossed, because the line in Breaking Bad referred to doesn't confirm the survival of either character: Saul says 'It wasn't me, it was Ignacio!', then 'Lalo didn't send you?'
The theory that Nacho gets killed has not been Jossed, because the poster has confused Lalo with Ignacio. Also, even if that were not the case, the theory would not be Jossed, because the line in Breaking Bad referred to doesn't confirm the survival of either character: Saul says 'It wasn't me, it was Ignacio!', then 'Lalo didn't send you?'