Hard to believe it's in any way connected. I'd be extremely surprised if Mosad/Aman didn't have sufficient resources in Libia, especially minding what they had in place in Iran, and how important Libia is. But also; they dont stand to gain anything from this attack and not in line with their doctrine; they don't to symbolic attacks, they go all out in a show of force. This meanwhile stirs up interest and support for the flotilla, without causing major issues outside of single boat. Id expect that to be an attack from any other actor looking to stir shit up, rather than Israel.