it seems reasonable. In general, what I always criticizes about the recostructions of the past is to not consider the "long tails high-entropy events"... what we can have abserved in our history of earthquakes, for example, is just so little. We absolutely need to consider that is happened (and will happen) at some point earthquakes of totally out-of-range magnitudes with gigantic effects.
At school they said me that the continents separated with little movement perpetuated for looong time... I cant prove the opposite, but it seems a bullshit to me. They seems to have been fooled by human the human bias of "inductive projecting expecting symmetry"