The early archeological parts of the video were quite interesting but a bit light on substance. But then it started to veer into an agenda-driven slant which causes me to question all the claims of the producers. I would have preferred a more objective documentary style exploring the history and archeology of this synagogue, with opposing viewpoints explored in depth, rather than one-sided claims about "being ignored by authorities", "blessed are those that persecute you" and other stuff that are usually the dead giveaway of youtube videos produced by conspiracy theorists and whatnot.
Was there some particular reason you posted this? Any point to it? It's got nothing to do with Orthodoxy or the Church and is a poor attempt to bolster a messianic jewish claim.