Neuroscientists have been doing BCI with monkeys for years. Take a look at the work coming out of Byron Yu's and Steve Chase's labs at CMU for starters
I guess I just meant for this specific nerolink tech. He is definitely joined by a massive group of our distant cousins that have been involuntarily drafted into service for us. It's brutal, but so is life I guess. Hopefully this particular one doesn't mind it too much.