This fellow does not seem to be Mossad material, nor would his actions fit Mossad. To tour Egypt and make observation, Israel has enough personnel in Egypt to do, even some with diplomatic immunity. Ans a Mossad person will not get involved in the demonstration. Also, lying in the past (in Tel-Aviv) about his religion, then enter as a newsman with the same name is unnecessary with potential troubles in the future. Perhaps Grapel the Schlemiel was seeking some thrills.
Five arrested in anti-terror raids in Sydney (DPA)
from the article: 'Suspected Israeli spy declared himself Muslim to get Egypt visa'