Which is why we don't have such novel doctrines in the Orthodox Church.
The greatest strength of the Orthodox Church is its resistance to change. Interestingly, at one time, before the Filioque Controversy, the Roman Church was known for being the most conservative and least amenable to change in Christendom, as an example, rejecting until at least Archbishop Gelasius, and probably until Pope St. Gregory Diologos, such liturgical innovations as the Greek-style antiphonal music first introduced by St. Ignatius of Antioch, and later introduced into the West by St. Ambrose of Milan.
The upshot of this conservatism is that of the heresies addressed by the seven ecumenical councils, only Monothelitism touched Rome, under the gross misrule of Pope Honorius I.
But by the 10th century, all this had ceased, and you had weirdness like the Cadaver Synod, the reintroduction of the Filioque, the constant infighting with Constantinople over the distribution of missionaries among the Slavs, a stagnant liturgy which failed to impress the ambassadors of St. Vladimir (had they attended a solemn Tridentine, Dominican, Carmelite, Bragan, Lyonaise, Sarum, Mozarabic or Ambrosian Mass following the rubrics of Pope Pius V, Cardinal Ximenez, or St. Carlos Borromeo, with the exquisite vestments, and the beautiful music prescribed by Pius X, history might have been different,* but by all accounts the Roman liturgy was in a bad state in the 10th and 11th centuries, the North African liturgy was gone due to Islamic persecution, and the splendid Gallican liturgy was being discontinued on an initiative that dated back to Charlemagne to get the entire Western Church to use only the Roman liturgical books, which of course never happened.
*The only Roman Rite liturgy to retain the sombre character which did once prevail throughout the Western Church is the Carthusian Mass, which reads a lot like the Dominican Mass, but uses music which is intentionally mournful and penitential in character.