It's just one of those 1-pagers you have to turn in if you skip a philosophy class and don't want to drop a grade.
'20 or so words.' What, you're too lazy to scroll and count the exact number?
I agree there's some leaps in there, but for me it was a good brain tickler making me remember what I knew about these philosophers.
I sometimes think these later philosphers are just the tail wagging the dog; Nietsche lets people feel like their nihilism had a pedigree. I've never ceased to be amazed at people who cite Neitsche and Heiddegar like they were new under the sun, when really most of them are regurgitated heresies from the first few centuries AD.
I have to disagree that God was ever attainable by Reason though, except among the Neo-Platonists. I don't think Jesus would have had to come down to us if we just skip up a ladder of Reason and meet God face to face. At most Reason takes you up to something like God's footprint, but he's still deus absconditus (an analogy errily close to Bigfoot).