I really don't like this kind of rationalization for censorship on technicalities.
Technically correct may matter legally, but we should make it clear that it is not acceptable for companies like Network Solutions or Facebook to engage in this behavior. If the law does not protect speech in these instances, we should push back using other means.
It's simply not reasonable to expect non-technical, non-lawyers to understand these nuances well enough to get their message out without risking censorship. Today, that's OK because we're talking about a very bad message, but tomorrow it may not be quite so OK.