When the article indicates that by
Originally Posted by article
reading their children bedtime stories... they are unfairly disadvantaging other people’s children
possibly the tail is wagging the dog.

Rather than lowering the bar and establishing a new norm, possibly the author could consider the inverse: by NOT reading to their children, parents are creating an unnecessary disadvantage for their children. Some may say this approach appropriately places the onus on families to be their children's first teachers.

The premise of this article seems closely related to the recent thread which linked an article which indicated
Originally Posted by article
The single most important factor related to children's academic achievement is the number of books they have in their home.