Writers should always write for the reader.
Writers should always write for the reader.
That said, I also skipped over tons of passages, for example, the laundry list of energy supplements. I read for different reasons on my phone, compared to when I’m reading a physical copy of the New Yorker. On my phone, I’m rapidly skimming tons of articles searching for interesting facts, which just isn’t suited for reading the New Yorker’s beautiful long-form style.
There's a funny irony here in your suggestion that the New Yorker writers have, in a sort of solipsistic error, forgotten to write for anyone but themselves. In fact, I'd suggest that it's you who have forgotten that not everyone (even on HN, it would seem) shares your tastes!
That's not to say that this piece is an ideal example of the craft. But there will be plenty of readers who appreciate it.