I'd rather assume that there'd be likely to be some people with guns in any sizeable group of people taking refuge in a church, a synagogue or a mosque, in a situation where people are fleeing in terror from an invading force. That doesn't imply that a church, synagogue or mosque packed with families is a justifiable military objective.
That was essentially what I understood the quotes from Father Siryani to be conveying. And I took the comments about one-sided reporting that leaves out the Palestinian side as referring to the media in the USA, rather than in Europe. Whether it is as one-sided as has been claimed, I can't tell. From the limited amount I have seen of tye USA media coverage, it certainly appears to be a criticism with some merit.
This whole messy calamity is a bit like a shipwreck where two bunches of survivors are fighting for places in the lifeboat. The job of outsiders isn't to support one lot in throwing the others to the sharks, it's to see if there is any way of getting help to them both so they can stop hurting each other and themselves.