Occams razor. He probably pursued a sale to Microsoft without the boards approval. Hes buddy buddy with Satya. Board basically said no, thats not our mission. Firedd
If Sam made a deal with MSFT that required board approval they would be mad, but not this mad. The board feels betrayed, and Sam being the secret owner of OpenAI through the foundation checks all the boxes.
Why would he accept to work under Satya?