I don't see why 'natural phenonema' being used by God would prove that it wasn't caused by God.
"Yet Cameron and Jacobovici claim to have unearthed more than a dozen archeological relics that suggest the exodus took place three centuries earlier than biblical scholars estimate. By reinterpreting artwork at museums in Luxor, Cairo, Athens and elsewhere, Jacobovici dates the exodus to around 1500BC."
The bible shows the exodus to have been around 1445BC.
If these guys are trying to prove the bible is fake, they're not doing a very good job.