Good points, and you are correct here. A flaw of my poor wording and non-scientific background. So, I change my wording to moving it from early stages of a hypothesis to theory, presuming these are the appropriate stages. Still, it is impossible to do.
Even though you claim it has a high probability, that itself is a gigantic leap because the problem isn't the really the presumption, or the claim. The problem is that the data is grossly insufficient to see any claim whatsoever as having any validity above opinion status. A 0.0001%, or whatever the actual laughable percentage used as a representation of the full history of the Earth the available data represents, used to draw any conclusion whatsoever is a conclusion that is in no way able to be proven.