FiatLux: You are a TROLL nothing else , Galaxy and it's download function for off-line installers in no real way compares to using a internet browser , with multi-tabbing and GOG.com Downloader for downloading of many games in a row.
The only way that you could be seen as to some extend not trolling would be if you stupidly thought this 'discussion' is about downloading a single game...
Anyway , I am not going to be TROLLED by you into having to go through a step by step explanation to try to convince a TROLL that one knows in advance is TROLL and therefore can not be convinced of anything !