In my moment of desperation, I received clarity.
What does the FDA approval do to the other vaccines? It renders them useless without the FDA approval. How many of the other vaccines are going to get tossed in the trash and expire due to people wanting to get the only FDA approved one? Billions of dollars thrown away.
FDA spewing gobbledygook. This is not full approval but an extension of the EUA. Comirnaty introduced on same EUA. Other vaccines I imagine maintain their EUA status.