Yes this would work! if 2 judges alert the tech panel of under or edge, they should add it to their voting.Maybe the easiest way to do that would be to have buttons that the jump judges could click to indicate whenever they take a GOE reduction for what they saw as <<, <, or e errors.
Then the "voting" would be through the computer: if two or all three of the judges press the relevant buttons, the computer would either alert the tech panel to review the other video angle, or if you really think the judges should override the tech panel it could just apply the lower base value based on the judges' pressing the buttons.