DaiShougun: I mean we paid the same money....
It's because Hello Games was not using the beta branch functionality of Galaxy, either because they didn't get access (as the feature is still being developed) or for whatever reason. GOG is working to give them access and hoping to have them online with this by tomorrow. This means any future patches/beta patches after that point should come to Galaxy as soon as they go live.
B0SC0 (a GOG Staff member) has replied to me about this:
At present, they are not using the beta branch functionality on GOG Galaxy, but we're working with them on it and are aiming to have them online with this as soon as possible (can't guarantee when, but we're currently working towards tomorrow). We know how frustrating this is for some, so we're doing our best to resolve this as best we can. My apologies for the delays with this and for my delay in following up with you, BK - very hectic weekend as you can imagine :)
Additionally, you can be sure that if there is an official patch released, then it will be live on GOG very soon after. We have a team on standby during the entire weekend just for that. ;)