I'm always shocked at how little this guy looks over his shoulder.
Don't forget that it's heavily edited. It's not like those early videos from Boston or NYC in which you get long, continuous sequences unedited. The London video is incredibly chopped up, and in the Eindhoven one you see some passages first from the front camera perspective, and then from the back. All in all, it only makes for very brief extracts from what must be far longer footage. (NB I do like his videos, by the way, this isn't meant as a criticism. To me, he looks like an excellent rider who I'm sure looks around when he needs to. That footage just doesn't make it into the final cut.)
Don't forget that it's heavily edited. It's not like those early videos from Boston or NYC in which you get long, continuous sequences unedited. The London video is incredibly chopped up, and in the Eindhoven one you see some passages first from the front camera perspective, and then from the back. All in all, it only makes for very brief extracts from what must be far longer footage. (NB I do like his videos, by the way, this isn't meant as a criticism. To me, he looks like an excellent rider who I'm sure looks around when he needs to. That footage just doesn't make it into the final cut.)