Especially from the people who thought they had seats right in front of Jerry and found themselves in the Phil Zone ... LOL
Incidentally, Healy said they did it to narrow the line and get closer together once Weir put his speakers in front of the drum riser. That also eliminated the stack of keyboard speakers that used to sit between Bobby and Jerry's cabinets in that era (two 15s, two 10s and a horn), behind Jerry in this shot.

They just stuck a wedge in front of the B3 facing across the stage for a keyboard monitor.
