Haven’t read the first paper but the second is a fairly naive straw man argument. If anything, it’s arguing against free will, which many panpsychists reject anyway. Free will or “outside forces” is not at all a prerequisite for panpsychism.
Actually his paper is a (decent) argument for panpsychism: we know that we ourselves (as individuals) are conscious, and we know that there’s nothing special at the physical level about our brain-stuff as compared to tree-stuff or rock-stuff or anything else. Particles in a brain are not somehow specially imbued with consciousness "energy", yet they obviously have it. Ergo the reasonable prediction would be that other things have it too and it’s much more a question of configuration that yields more or less of the emergent property of consciousness (much like different configurations and states of atoms can yield more or less magnetic force, conductivity, energy, temperature, etc) - all of which are only possible in certain configurations of energy/matter because all energy/matter itself has the properties required to yield those effects. That is the panpsychist argument, and it has nothing to do with free will.
Actually his paper is a (decent) argument for panpsychism: we know that we ourselves (as individuals) are conscious, and we know that there’s nothing special at the physical level about our brain-stuff as compared to tree-stuff or rock-stuff or anything else. Particles in a brain are not somehow specially imbued with consciousness "energy", yet they obviously have it. Ergo the reasonable prediction would be that other things have it too and it’s much more a question of configuration that yields more or less of the emergent property of consciousness (much like different configurations and states of atoms can yield more or less magnetic force, conductivity, energy, temperature, etc) - all of which are only possible in certain configurations of energy/matter because all energy/matter itself has the properties required to yield those effects. That is the panpsychist argument, and it has nothing to do with free will.