The issue of bags being left behind used to happen weekly on a Boeing 737-800 operated by XL Airways from Cardiff to Sharm el Sheikh.
Approx 50 bags used to be left behind every week however passengers never knew of this and had actually been lied to guranteeing that all bags were all loaded after a passenger spotted bags being removed from aircraft.
Bags would be taken by courrier and loaded on to another flight from London arriving at Sharm el Sheik 2 days later.
Reason given was to load more fuel however Thomson Airways operate Cardiff-Sharm el Sheikh with no such issues. So not sure if it's dependent on engine type or if the XL aircraft had no winglets.
Gaza
If the incident referring to you in the paper is the Easyjet one at Birmingham then that was an allmighty cock-up of another sort especially to over fill the aircraft with fuel.
Ph1l1pncl
Fuel can only be removed from an aircraft if there is a empty fuel bowser available. They cannot offload fuel and put it back into the bowser as all the fuel will then be contaminated.
However i am not sure if this is possible on all aircraft as some are over wign refuelling and others are under wing refuelling. Last request i had for this was on a Boeing 777-200 but it was too complicated and time consuming to do so in the end it was agreed with the Captain and Fuel bowser not to proceed.