I have two children roughly OP's age, they couldn't possibly be more different in terms of motricity, senses, intelligence, etc. Polar opposites. My first said her first words at 9 months old, "ba" for ball, bath, and 2-3 more meanings, and made a repeated sound pointing towards the object of interest, sound which cannot be described in words. Before the age of 1 we had amassed over 50 words, most up to 3 syllables,…
Sure, we read to him, and we make him read aloud to us too, but we're really just catalysts. He can make himself comfortable in a chair or on a sofa and read comics (Donald Duck, Asterix, etc.) for hours without any prompting (which, honestly, is a really nice feature to have on a child). I expect we'll be able to coerce him onto autonomously reading suitable books in addition to comics by next year too.
I do strongly believe that him seeing us read, and being surrounded by (actual paper) books helps. It means he grows up in an environment where books are normal, not just something you must grapple with because of school.
I don't like the heavy training implied by the article though. I want to raise a kid who likes reading, not one who will resent being pushed to read.