If you were going to put % chances that he was speaking literally, what would you put them at? Surely you'd agree there is at least a chance he was just stream-of-conciousness tweeting what he was thinking?
https://youtu.be/270F8s5TEKY?t=151
I don’t think you can wave away the impact of Trumps words, even if he didn’t intend violence. His audience interpreted approval. That’s what matters. To disagree is to be deliberately ignorant or to argue in bad faith.
That is a totally unreasonable standard that would speak very clearly of a bias (if that is what Twitter thought, which I doubt). It isn't being applied to politicians at all evenly, it is only being applied to Trump. If the speakers intentions and literal words don't matter, and they are to be judged by the most extreme fringes of their supporters then no politician is going to be allowed to speak.
What made those tweets untenable was the changed circumstances of the attack on the Capitol and the knowledge that those engaged in it were relying on Trump's support and encouragement.