One of the developers hosting Kali posted about it here once. Basically he remembers one morning waking and seeing that traffic had spiked and he was really puzzled about it. Up until he clued in to the fact that a certain episode of Mr Robot (where Kali Linux figured prominently and was advertised quite profusely) had been aired the previous night. So yes, there has definitely been a spike in Kali Linux downloads over the course of the show.
