How does reconcile that against Halli clearly tweeting a lot? If he can type to tweet, surely he can type to work? And if he can't type to work, and his job req

How does reconcile that against Halli clearly tweeting a lot? If he can type to tweet, surely he can type to work? And if he can't type to work, and his job requires typing, why would he stayed employed? I know someone who can literally only move her eyes and her neck a little, and she still manages to use software to type.