Yesterday, my wife and I had business class flights from Osaka/KIX to Bangkok via Seoul with an Osaka/KIX departure time according to my 2-week old e-ticket of 1350-hours however upon arrival at Osaka/KIX (and I had to first arrive KIX from Kyoto) learned the new departure time was 1205-hours
Is this typical of KE (ie. changing flight departure times WITHOUT notice) or was this a one-off oversight?