I think like so many other things across the globe, any tradition, even the traditions in error still continue despite admonishment or information. How many Greek grandmothers still talk of the evil eye even when their priests have deemed it as nonsense, or how many Mexican people cling to La Santa Muerte, dispite admonishment from their religious leaders? There are still modalists, sibaliansists, aryans, and other apostates despite the efforts of the Church to eliminate the belief system.
Now, this is an interesting topic because of the governance and traditions of the Eastern Catholics. The situation is not ideal, in that if hardcore Roman Catholics had their way, they'd probably be forced to practice the Novus Ordo Mass instead of the Liturgy of St. John Chrysostom. while the hardcore Orthodox want thme either denounced or returned to their mother church. But the truth seems to be that because it has exhisted so long, and does not show sign of change, what the others call error really cannot be changed. Once you've lived with something for so long, it's hard to let go, no matter how much of an anomily it is. Also, you have human life and traditions in the mix, which leads in many cases to frustration if change in any rate is the goal.
There is no easy solution what people see as problems, especially when the practicioners don't see it as a problem at all. But I have a question for my Eastern Catholic friends. How do you find the situation you are in, seemingly caught between two churches ( no insult intended) but contrasting with both at some level? Does it even cross your minds? Is is a burden, or a challenge to be met? Is is even that?