Fantasy can be profound and thought provoking.
I know lots of people who read books and articles. The people I know may not be a representative sample either, and the article is about US numbers and most people I know are not in the US.
> Fantasy can be profound and thought provoking.
It can be, but there has always been a lot of garbage like any art form. "The Well-Tempered Plot Device" is more than 40 years old now. https://news.ansible.uk/plotdev.html
And even the best authors are infested with "series-itis" and especially the fatal malady "series incompletus".
My sci-fi/fantasy reading habit broke because I refused to start any series that wasn't finished. Suddenly, 99% of sci-fi/fantasy disappeared.
My only hope for David Gerrold to finish the "War Against the Chtorr" series is for him to have notes that he hands to someone else. The last book was 36 years ago! Don't complain to me about George R. R. Martin. Amateurs.
I have seen numbers showing kids are reading a lot less in the UK but I think that is the result of a deteriorating educational system that treats reading as a chore, not fun.