Another point is: The two churches I mentioned above were in the same town in the same nation sharing the same culture. You asked about a "disparity" between Eastern and Western Christian churches, while a disparity between the teachings of groups in your own church may be a threat worthy of more attention than hemispherical differences.
Iam glad and thankful to announced here that there is no disparity among the churches here Malaysia. We have a Christian NGO called Council of Churches Malaysia CCM) or National Evangerical Christian Federation (NECF) whereby its members are from leaders of different churches in Malaysia. There is a standard SOP that regulate these churches. So our belief is the same