The whole story looks like a clumsy Arab plot to me. Arab countries, starting from the top-dog Saudis, hate the influence of Iran in the region. Hamas (or was it hummus?) is backed mainly by Tehran, and the deceased scoundrel was on his way exactly there, right? So, if other towel-heads needed to send a clear message to the Palis, there was no better way than to stop him in the tracks.
To try and blame the whole business on Israelis is just a bonus. But, as I told, a very clumsy try: stolen identities the Mossad does use, but only really silly teenagers would choose, out of six billion world inhabitants, the ones so easily traceable back to Israel.
So, this detail is obviously was conceived by the very professional Dubai plotters.
And anyway, do we have any proof that the group in question has indeed seen that Muhammad What's His Name out to the 70 virgins, except the statements of the Dubai Police Chief?
Arab Spin. Perfect analogy. I agree if Mosad did it they would have never been seen.