Earlier quoted context omitted.
Not really. It means it's no longer profitable to advertise to teens on most corporate social media. Anything that moves the needle toward dismantling the advertising and marketing industries will always be a worthwhile endeavor.
Anything? Including preventing teens from having an online life?
Let's not act like the only way to communicate with each other or use the internet is through corporate controlled software.
It would do teenagers good to be forced to use other forms of social media that aren't controlled by companies that don't care about their mental health.