While @ Google I interacted with LaMDA's predecessor, Meena. It was definitely uncanny and person-like. Some fairly intense "conversations" were had. I don't know how LaMDA compares, but I can see how someone could make the leap towards seeing sentience there, but I think it requires a certain willful suppression of disbelief and probably a preset desire to get that outcome.
It's possible someone who is already a person of faith would make that "leap" easier.
I do wonder about the ethics of doing this ("human emulation") generally anyways. The conversations obviously impacted Lemoine drastically, and it will inevitably do that with others. Having made systems that can be this convincing (at least for some subset of the population), is this really something that we should continue pursuing? What is the scientific value?
And is this really something that we want the world's biggest advertising company to be doing?