This might seem true in our technical buble, but most of the public probably has no idea who he is. They try ChatGPT for a work task and think it's amazing and love it.
I've seen this happen many times, and once one person in a small team/company tries it, everyone else starts using it and they also love it. These people don't know what OpenAI or who Sam Altman is and there hasn't been any trust broken because ChatGPT works for them.
Where there's smoke there's fire. You don't get to a point where you "destroy public trust" without also destroying investor confidence. The upstream comment mentioned "public trust" - but there were also trust issues with the board. These issues then put further investment in limbo until he was able to change the board.
My point is, that any trust issues aren't likely what they seem given that Apple made such a large bet with the company. Sure, it's "only" a distribution deal. But Apple needs to know that OpenAI will continue to have access to the resources they need to continue servicing massive markets. The trust may be wobbly, but not destroyed.