This isn’t new. It’s always been this way. He’s just finally saying the quiet part out loud.
The FCC has always asserted governance over the airwaves on the basis that only so many frequencies are available so regulations are required to ensure their limited availability goes toward the advancement of the public good.
Because the airwaves are freely available to anyone with an antenna, one of the ways the FCC “ensures the advancement of the public good” is regulating what’s allowed to be shown and said on television under the basis that children are watching at home.
The FCC has a long and varied history of enforcing censorship on the airwaves. It used to be that women’s periods couldn’t be mentioned, it used to be that actors had to keep one foot on the floor so they didn’t show “a man and woman in bed together.”
Violators have always been subject to fines and revocation of their license. Corrective action has always been at the sole discretion of the FCC. The only thing that’s changed is how openly aggressive the FCC has been wielding their authority.
Historically, the FCC has always been regarded as having too much power, but they’ve always managed to avoid regulation by wielding it responsibly and conservatively and generally not pissing off the public to much. The current administration is highlighting why this has been a mistake.