Yes they have no reason to complain with aircraft at the holding point waiting for several minutes with their engines facing homes just metres away. Any other UK airports like this? Don't think so!
Being serous for just a minute this isn't a great location for an airport but one day if the airport got really busy no doubt compulsory purchase orders would be served to get rid of those house for a parallel taxiway. The right thing to do is to offer those homes market value now, if they don't want to move then their complaint will be diminished.
