[Practicality]

It's just a blog post about what he has observed as a common problem with teams falling behind. I think it's a little much to call it worthless.

Excessive focus on unimportant details is a real problem. Everybody probably naturally focuses either too much on details or too little, and this person recently ran into some teams that focused on them too much, preferring to polish features the customer didn't care about rather than finishing the product.