Why did ARG, which had been stagnant in Europe and the United States, bloom greatly in Japan? Learning from the success stories of the "Fourth Boundary", the secret to success in experiential entertainment

Why did ARG, which had been stagnant in Europe and the United States, bloom greatly in Japan? Learning from the success stories of the "Fourth Boundary", the secret to success in experiential entertainment
While making 11 million people enthusiastic, why was ARG said to be "unprofitable"?...

The linked article is in Japanese.