I am not so sure that this time it was Israelis. Not to say that they couldn’t have done it, or wouldn’t have done it, as they assuredly have other times.
But my suspicions were aroused when it turned out that this particular mosque was not in use and THERE WERE NO MUSLIM HOLY BOOKS in the place.

If this were a “price tag” attack, I think they would have picked a mosque in use. So I am extremely suspicious and reserving judgment.