Iīm gonna have to agree with Night fr8, it sounds like good old Ryanair spite is in the air yet again. People (who are not flying for Ryanair) donīt realize that they probably have the most stringent SOPīs and safety measures in the airline business today. Computerized loadsheet or not, this is a human error, and could have happened in any airline out there!
P.s. I am neither management nor a fan of theirs, just sick of all the "good old Ryanair" bull****.