Considering the number of patients our local Ophthalmology unit used to see that were legally blind and were still driving round in these things, it wouldn't surprise me if he just couldn't see which way he was going and thought he was going home!
No, that's the RATE at which he accelerates to the terminal velocity of the average human being. Given enuff distance to fall, at the increasing rate of 32 feet per second per second, he would eventually reach around 126mph. He would have needed to have fallen for just under five seconds to reach that speed, but given that Beachy Head is ~530 feet, he would have hit the beach at something like the required qualifying velocity.
Looking at it the other way around - imagine just sitting there when a stoney beach hits you at that speed.