>>803429
Eastern Catholics don't have the filioque in the creed, although that is rather secondary. Having a modified creed is a symptom of our different understandings of the relationship between the doctrinal authority of the Pope and the doctrinal authority of Ecumenical Councils, but the main issue is -what- the filioque means. Even if our liturgies use the same words, it's pointless if we turn out to actually have different Trinitarian theologies.
The Council of Florence tried to find common ground but we still don't find it acceptable. At the same time, we've been quite lazy on our end and, unlike the Catholics, we haven't made much of an effort yet to interpret Augustine's Trinitarian theology in an Orthodox manner (because that is essentially where the core of the problem lies, at this point).
>>803417
It's not like the Eastern Catholics were just left alone after reunion with Rome. Some basically became Latin Catholics (see the Ethiopians) and some were not allowed to let their theological and liturgical tradition breathe, to the point it even caused schism (see Alexis Toth for example).
Furthermore, this "hands-off" approach of "yeah you just need to commemorate the Pope in the liturgy, you don't need to do anything else" has led to many Eastern Catholics not actually understanding Roman Catholic theological tradition, or even knowing that Roman Catholics don't express the faith in the same way.
Finally, on a more practical approach, even just "accepting the Pope" doesn't mean "not changing anything else". If you enter communion with the Pope, you lose autocephaly. In the Eastern Orthodox communion, autocephaly means that there is no higher authority regarding ordination of bishops or administration - the Patriarch is the one accepting or rejecting the ordination of so-and-so bishops in his jurisdiction, and there is no higher authority above him to also do this. But in the administration of the Catholic Church as it is today, the only church to really be autocephalous is the Church of Rome.
So, at the very least, dialogue with Rome with the intent to restore communion would be more attractive if the Catholic Church returned to the form it had before the schism, administratively speaking. We can discuss the Pope's universal jurisdiction after that… And, doctrinally speaking, the Orthodox would need to actually understand and then find acceptable (even if not ideal) the Roman Catholic dogmas, and likewise, the Catholics would need to actually understand and then find acceptable (even if not ideal) the Eastern Orthodox dogmas.