Photios was a schismatic, no glory at all only that which he receives from those schismatics like him. May God have mercy of them.
Your justification on Saint Agustin hold as an eastern saint does not make sense at all, if Agustine taught Heresy, even in ignorance of greek "t"radition, he couldn't be saint. Or He is realy a saint and filioque is not a heresy. That easy.
Did you read already the refference I brought of the first council of Toledo?
Do you have the document that states that Saint Epiphanius was corrected by someone?, Who and how corrected him?, is there evidence of that, or just circunstancial evidence?
Please do not multiquote, quite tiring, is that your strategy?