[ryanoshea]

Haven't read the full decision, but here's how I see it. Governmental agencies do not instruct users to get in touch via Twitter. There are dedicated phone lines, email addresses, offices, and websites that serve that purpose in an official capacity. Agencies who do conduct business in response to inquiries on Twitter do so as an added convenience on top of the other readily available public channels.

When Trump uses Twitter as his primary method of addressing citizens and announcing administration policies, then selectively prevents citizens from viewing those communications, he's doing something much different (in my mind) than a private company restricting the access of a person to a service whose terms of use they have violated.

The equivalence you drew doesn't seem valid — US citizens have no expectation or right to send communications to the Office of the President and have them read or acted upon. They do have that expectation/right to have equal access to public communications by the President.