The runway extension achieved absolutely nothing for the £10m, they even had to pay a consultant firm afterwards to write a report on how worthwhile it was.
Of course the current operators when asked had no interest in an extension, they were already operating there! They needed to ask the operators who are not there what it would take for them to think of operating and it would have started with another 300m to allow a reasonable RTOW against the terrain ahead on 16.
Some covered access from the terminal would not have gone amiss.