It's a reasonably well put together article, but I'll save you the trouble. Apparently they aren't compatible.
I value UX. I worry about knowledge management and how hard it is in large organisations and communities. UX is a form of knowledge management. I struggle with agile in the enterprise. Agile is hard and enterprises like short-cuts. I think about these things and I try out experiments all the time. I want a better world.
Maybe I am in a grumpy mood, but it irks me when people put up a straw man and then argue their case. It's a cheap debating tactic and I didn't like it when agile folks did it to project management and I don't like it when other practices do it here.
Let me unpack the argument a little more succinctly for you;
If you are sloppy with your work and you fail to think about the whole picture you will end up doing a shitty job.
Here is a picture comparing UX (strategy) and Agile and highlighting its issues of compatibility.
Let's work together people. Stop trying to be the cleverest kid in the room.