FWIW I was at my dealer today regarding 21-2119 TSB. Asking to my have my cam phasers replaced. I was told that a new update was released yesterday Sept 13, 2021 regarding the cam phasers. Ford is now reverting back to having the PCM reprogrammed. If any transmission issues arise after the reprogram they then flash the PCM back to factory settings and only then will they rip into the motor.
They printed out of the document that Ford Corporate sent to them, and gave me a copy. if anyone wants to see it I will upload it.