Anyway, props to the unnamed Bernie staffer who came up with this. Whoever came up with it, it is just hilarious
Second, you have literally no idea how much input he had into it. He may have come up with the name himself, or he may have directed his staff to come up with something pithy that spells out "Bezos" or he may have sat around with them spitballing ideas until they came up with something good. But in the end, he was the senator who introduced it, and he gets the credit.
In the real world so do politicians and executives...
If I referred to HRC's staff as "underlings" no one would question I was anti-HRC.
Also, he certainly had a sense of humor back when he was mayor of Burlington -- it would be surprising if it disappeared now.