Amongst the points it makes the one which struck me most interesting was the fact that in the geological record, CO2 levels lag warming by several centuries so that CO2 levels are clearly a product of warming and not the other way around.
Here You seem to appeal to something that you dismiss in other forums, at least be consistent .
Besides, that is no counterfactual observation. The sedimentary geology is a big sponge that sucks up things from the atmosphere. It would take time to incorporate Carbonates into sediment and increased plant material.
However, the geologic record is a very compelling piece of evidence that climate change is a periodic, episodic event that occurs frequently in the planets respiratory cycle.