MD 20/20 really stands for “Mogen David.”
Kosher-for-passover wine was needed, but that’s used 1 week out of the year. So they had 51 weeks worth of manufacturing capability left over.
They had not tried to make “good wine” but rather made do with what they had -— Concord grapes for jelly, so it was not like they were going to go after Bordeax Cabs.
So they aimed low, and MD 20/20 was created.