I noticed that you have three Powerwalls. I wonder if that is part of the issue, since three Powerwalls are above the 10kW maximum to be considered a small system.
Could be, except you should know I originally wanted 2 Powerwalls and PG&E denied me a partial home backup. They said a partial backup was unsafe. I had to add the 3rd Powerwall to do a whole home backup, or I’d have zero Powerwalls.
The screenshot of my interconnection agreement is my NEM2-MT agreement, which is intended for >10KW ESS systems. It seems to plainly allow export that includes all the batteries.