IM a good point indeed some of us can go back as far as the 70's recalling the struggles first hand. I am sure SEN has a place and business will improve again. However, customers only have so much money and time to travel, the momentum has to slow down.
On another issue when the 3rd runway and terminal 6 arrive on scene late 2020's, LTN, STN and others will be in for further hard times, especially as Easy/others will want to be at LHR !
This industry never stands still.