As a tax/benefits attorney for more than 30 years, a significant diminution of responsibilities and change of function to which Ben would have been subject would have been enough to trigger a Severance package in many organizations. This is done to recognize that the person had been fired even though employment was not terminated.
In the words of Casey Stengel at a Press Conference after he resigned as manager of the NY Yankees, "Heck, I didn't resign. I was fired." That's the reality.