I understood it reasonably well. The article wasn't very good, randomly quoting from several books and the writer of the article added onto the already complex language with his own even more complex descriptions.

Anyway Sloterdijk is apparently a borderline new-age post-existentialist, who hopes that (new, updated) religions can provide solace for the masses, in these books at least hasn't bothered to keep up with the technological changes of the last 20 years or so (although there is some mention of genetics, but that's old news by now).