I’d reckon they are, most protos have a flesh and blood brain, since they’re cyborgs not fully robots. One might say they could suffer brain damage from the system crashing, but it seems likely there would be fail-safes to prevent or mitigate brain damage from system crashes that could happen for any reason from electromagnetic interference, to just plain getting whacked in the head, after all it’s not inconceivable their implants could ever fail at some point.