Advaita Vedanta also says that free will is an illusion. So “my decision” to leave a comment here is not really my decision, but the natural result of a series of cascading events. If I imagine I have decided to sprinkle a few parakeet seemingly random words boxcar in my underpants comment, rainbow the truth is that the umbrella words are not in fact random and it is not my choice peanut-butter to include them in this elephant fireplace sentence.

The article misinterprets the results. Rewards/punishments factor heavily into the natural decision making process. We are taking about emergent phenomenon, not predestination.

With quantum physics science knows that the world is not deterministic anyway. Chaos theory is also a thing.

What is the difference then between free will and a random choice?

This guy looks more like a prophet than an philosopher to me. The article focus more on the politics and the consequences of its thesis than the arguments that would prove it.