Easier to follow than the lecture on "Determinism, Fatalism, and Thomas Hobbes". Much depends on the editing, I guess! The points are all easy to understand. I enjoyed this!
As an atheist, though, I blame people like Kierkegaard for religion's continued foothold! Objectively, if a person were to choose, say, between the fables or Aesop and all of Jesus's sayings and parables, to choose between them on the basis of "who do you think is the son of God?", I think any sane person would choose Aesop. Same if they were asked to choose between the Buddha and Jesus. So the only way you get geniuses like Kierkegaard spending so much intellectual energy defending Christianity, is if you get at their brains while they're young.
The consequence of this, is that solutions to real "spiritual" and material problems are harder to come by, because these people squandered their energies on the wrong philosophies. Take a practical solution to Heidegger's question that you bowed to: what is "is"?
Materialist answer: scientific (material) immortality. It's on the horizon. If only people weren't so obsessed with spiritual (immaterial, in both senses of the word) immortality, so as to be blinded as to the desirability, and efficaciousness, of the former.
Why is this a (possible) solution to Heidegger's problem? Because who can answer such questions like the ones he poses, when you only got 100 years to live, at best! We're children! The greatest minds in the world didn't live past 120 or so. We're all babies! My pragmatic approach says: make humans live to 1000 years, and we'll solve most of all the philosophical problems that were ever thought up!
Now, this is all a mere possibility. But, faith is what Kierkegaard asked for, right?