Completely understand what you say...all the more reason to get the EXT expansion programme up and running.
To be honest, as I have said already, I don't think there is feasability to any more expansion (operator wise) as the facilities are so limited. Try getting the number of passengers for an A321, two - three Dash8-Q400s and a Embraer 195 plus any additional aircraft ranging from A320 up to A310, then you have a problem on your hands especially if you are at the check-in desks!!
Last year, some of our passengers were waiting outside being given bottled water due to the lack of operational check-in desks.