I'm repeating myself again here, but it's funny to see when your nickname on HN suddenly becomes relevant.
* EDIT: Just because it is apparently not clear enough. No, this is not a coincidence, no, my real name is not milankovic or similar, and yes, I've chosen my handle in honor of this scientist. *
But you are right, I am completely with you in regard to this certain point:
> The change in orbital shape was already known as one of the Milankovitch cycles
It was already known, yeah. Or so I (we?) assumed. I'm just some poor slob who visited an ordinary school, not an astronomer, not special in any other way, and I still remember that we learned this stuff back then. Astronomy 101.
I bring this up in a comment here, and all I get is downvotes. Which tells a lot about HN, I think.
The context of climate change, now that is the really interesting question. I am really fascinated to see that Milankovic is finally becoming more relevant today. (Ask about a famous Serbian scientist, and everyone can mention Tesla. Ask for the next one, and observe. But that's a good test, to see who really gives a damn about science)
Interestingly, I did a Ctrl+F on that NYT article for the name, and nothing came up. They even fail to mention the relevance to climate change at all, which is, as everyone knows, totally not an important current issue in, well, 2018; and maybe it is just me, but one would assume that this could be something newsworthy. Again, the fake news NYT utterly fails once more. I should really not be surprised at this point.