I've seen the video and was so amazing. This only shows that there were different ideas and views around. This New Testament was never the injil but the works and collections of what the church leaders decided on. Anything which did not comply with their prejudices was kept away. The doctrine of the Trinity was a long, violent and hot conflict for centuries. It was made official in the 4th century. Little is known today about the Nasara and most what is known comes from the church which has been hiding the truth about them. The injil of Isa(as) was observed by the Nasara and not by the followers of Paul who became known as "Christians". The followers of Isa(as) were never called Christians and they were not polytheists but they rather believed in Tawhid, Torah and were basically early Muslims. I always differentiate between Isa ibn Maryam(as) and Christianity which has nothing to do with him.
The only thing missing from this video is the miracle birth but the rest is all there Subhan Allah.