It's something in which I personally clashed with HG Bishop David on. When I was in undergrad, I wanted to do a joint Indian/Coptic liturgy between two priests, since the club I headed was filled mostly with both Indian and Coptic Orthodox. I was told by my priest that it would be nice to get the blessing of HG first. When I told HG, he asked me, "Who is their Catholicos?" At the time it was HH Catholicos Mar Thoma Matthew, and I said that. He told me that the Syrian Orthodox do not recognize that church, but I replied saying but "we do." His logic was that since we have very close relations with the Syriac church, we must respect the Syriac church's excommunication.
Angered, I called him back later after finding out the two other bishops in the US recognize communion with the Indian Orthodox. To my luck, both these bishops were in Egypt for more than a week. I allegedly left a message in HG Bishop Serapion's cell phone (diocese of California) via HG Bishop David's "connection", and I never received an answer back. It's as if I said nothing, and I was just ignored or brushed away. Another Coptic priest told me not to get involved. He told me, "Not to get involved in the politics of bishops; it's a bad road. My next door neighbor is an Indian Orthodox priest, and I consider him Orthodox as I am, but I can't do anything against HG Bishop David's ruling. All you have to do is pray. If you get involved, you will be in trouble."
I don't know what's in HG's mind. All I know is that he is indeed very very close with the Syriac churches in NJ area. We've even had a Syriac Metropolitan come visit our church in Holmdel, NJ, and he lead the liturgy there (and I was amazed to find that he knew some Coptic and the way liturgies are being sung in our church). The only way you could tell he was a Syriac Metropolitan was his onion-domed hat.
So I listened to the priest and did not question the matter any further. I must admit, I also held a grudge against HG for ruining the plans of a united Liturgy held out our University, and I never really wanted to talk to him again, or even approach him.
I hope maybe one day, he'll realize his mistakes and change his mind. Or when I am done with my studies, perhaps, I'll arrange a meeting with him with some research.