We own a home in Magnolia Cottages by the Sea, the homes just behind the PRC. I've never heard that before either. My guess, if you are seeing that, is an attempt to thwart party-ers, etc.. It is a quiet neighborhood where everyone enjoys the neighborhood but basically keeps to themselves. Loud music and all night hours would neither be welcomed nor tolerated I am sure. But, Jesus is not presently hanging on crucifixes in the hallway..... at least not outside, or by the terrace level pool (gorgeous view of the gulf btw). There are no services or masses being held, to my knowledge, on site. I feel most confident your Jewish friends would feel welcomed.