I agree transmission should receive extra protection. But there is no case where moderating every piece of content that flies across the internet is economical nor even feasible given the volume and how insanely difficult it is to create repeatable one-size fits all rules. However, given the amount of public discourse that exists online now, we would only see a chilling effect from changing these rules. It gets even harder when you think about something like Mastodon.
Is the current state of the world ideal? By no means. It wasn't ideal before either when media and public discourse was controlled and channeled by only a few entities. And we should expect to see evolutions in the future as well - we haven't found the happy place yet.
At the very least, it seems reasonable if large public platforms were required to be more transparent about their moderation efforts and rules so at least we can see what is behind the curtain. The lack thereof has created a lot of distrust.