Lot of flap showing in that picture for take off???????
An earlier post stated
Runway is relatively short and stop margins with Airbus A320 with Conf 3 in the 30 to 60 meter region with WET RWY with medium weights and engine anti-ice on. TOGA thrust provides much better margins but it is still a short runway and many companies operating in and out have put restrictions as to who can be the pilot flying
Guess that will be the reason.