Regardless, this shouldn't have been an issue at all if the farmer had adequately hedged his position with an offsetting buy option at the sale price that would have captured any significant price movement (outside of any basis shift).
This farmer was playing loose with risk management and wanted someone to eat his $25,000 mistake (higher $82K later crop value minus original approx $57K contract value at $17/bu for 86 tonnes).
EDIT: now that I think more about it, I'd guess this farmer completely forgot about the sale agreement and this argument about the emoji was a post-hoc invention by his lawyer to try and weasel out of paying the terminal $82,000.