You missed the point of the article entirely.
The Bookish Life--obviously this will discuss a life built around books. Yeah, yeah, anyone could guess how it would end, i.e. there's little fortune in it.
How to Read and Why--interest. Purely so. You read slow because of your interest, you read because of your interest. Just as a foodie eats a dessert slowly because of his interest, he eats because of his interest. That a book-ie and a foodie would prefer one set of books or foods over another or over all others doesn't make the person less of a lover of their books or foods. That a foodie might prefer chopsticks over silverware, fingers or tortillas doesn't make their palate any less exquisite.
Tell me--would you consider Isaac Newton and Fyoder Dostoevsky small-minded because they tended to keep their reading Euro-centric as well?
And would I be right to charge anyone who hasn't the faintest interest in the Dalit literature of India or Japan, or in Mariama Bâ's So Long a Letter, or in the depths of Borges' poetry, etc., to be merely provincial? Or am I just being smug regarding my reading habits?
I recommend you re-read the piece with a little less hostility.