I think you have it exactly backwards. The technicalities of the law are meaningless - morality is what's important. We created the law to codify morals, and, to the extent that it is good to follow the law, it is good only to the extent that the law agrees with morality.

And, of course, it's a moot point anyway because Taibi says requests came, and were honored, from both sides, including the White House. Even if "Joe Biden wasn't President yet" is true, Trump was President and his White House was working with Twitter to suppress speech. I just don't see how it is a question, either legally or morally, that the Federal Government, with Twitter, has been violating the first amendment.