Wasn't it streamed by the White House itself as well?

Should every TV station be required to air every public servant's statements? Surely going to the source isn't too big of a burden for most.

it's not every tv station in question it's about news stations covering the election. 'every public servant' is not in question.. it's about the current president of the USA

Watch it on CSPAN. That's what CSPAN is for, showing complete government events without interruption or editorializing.

How can you make sure they are serving you if he doesn't hold press conferences for hundreds of days?

And you do. There wasn't anything of substance said in the part of the speech that wasn't aired.

Feel free to watch the whole thing. No one is stopping you.

There is a difference between censorship and moderation. Trump was literally trolling on CNBC's platform, and they chose to confront that.