i 1000% they should've stayed and appreciated but the context is important aswell - in Turkey those who turned up for the event were not home team supporters but those who enjoy the game and wanted to witness the event and had no real stake in the game itself. eSports is not developed and followed the same everywhere(EU leads in this) and we can have W crowds once people actually travel internationally to watch their teams play like in football.
Also, region/country bashing in this thread is awful - I've seen EU supporters riot and physically attack after a loss in football or even the racist chants and throwing of bananas at players. I also know in South Asia, stadiums have been lit on fire after a loss in a cricket match.