I will miss Toys R Us (as I miss Caldors, Gimbles, Woolworths, Jahn's, Korvettes, Arthur Treacher's, Alexanders,... and, very soon, Sears) not only because of its nostalgic elements, but also because my child loved so much to go there, and it remains a shared memory of enjoyment for the two of us and, for her, enchantment.
That being said, and it was alluded to in the article, there wasn't much to draw a child there beyond the toy selection. I thought Toys R Us missed an obvious opportunity to be "an experience", to have something going on at all times that would entertain children, draw them in, and keep them coming back. I don't know, a trampoline? video games? teaming with and doubling as a daycare destination so parents were constantly trafficking the premises?
They also had the opportunity to retain young people as they grew by seizing upon the gaming arena, making it the go to place for products and advice, but others did it better.