Time has disappeared as people attempt to do everything themselves (work, cooking, cleaning, managing finances, etc) that may have been shared or outsourced in the past. But time has also disappeared into intentionally addictive apps on our phones. Every commercial game and social media site is designed to maximize your eyes.
Money seems to be ignored by the article, but every generation is worse off than their parents, as wages stagnate, housing skyrockets, student loan and medical debt keep going up, leaving less and less disposable income. With finances so tight, people cut back on group gatherings that have an associated expense (bars, concerts, etc). And raising children becomes unaffordable.
Personally, I blame billionaires, including their influence on tax policies, suppression of wages, and the creation of monopolies that push up prices. The elimination of sex is just one of many side effects of a much bigger issue affecting the working population around the world.