Specifics depend on the country. In the USA, over the air broadcast is restricted in content on the premise that broadcast spectrum is a limited public resource, and that you don't have much choice with what you see when you tune in. That argument gets pretty weak with point-to-point networks with nearly unlimited bandwidth, as I see it. An analogy might be the difference between ads with nudity on billboards (I believe that can be prohibited in the USA?) and ads with nudity in a print magazine going to a subscribership expecting such ads (protected by the 1A, including for mailing through the USPS).

Public libraries are perhaps another source of analogy. My local library system has some of the most vile and objectionable works ever printed on the shelves due to popular demand. Many public libraries in Canada and the USA are quite absolute about that with regards to free expression. For example: https://www.cbc.ca/news/canada/ottawa/porn-library-ottawa-po... "Library patrons allowed to surf porn, Ottawa mom discovers"