Xaujin: I love GOG - truly I do, I got Witcher 3 on here exclusively because of how much I love and support these guys.
Although I love them, I 100% cannot stand by this ridiculousness - and am now thinking of removing my pre-order from this platform and buying it either on the PS4 (though I loathe to do that) or from a physical store. How can a digital distributor not offer a pre-download at the very least to mitigate the "stagger".
Why should I wait more than half a day to install digital content when a store such as Target would have it at midnight on Thursday? Wasn't the whole purpose of making a platform like this to cut out the middle man and make it easier for consumers to get their products from developers?
Ridiculousness? GoG are under no obligation to supply purchased content to you, one second before it's available. To demand the content earlier makes you sound very entitled. Though I shouldn't be surprised, it seems to be the norm these days.
Furthermore, this is not Steam, where the platform is in itself DRM. Galaxy is just a glorified download manager, any games downloaded through it can be run without Galaxy being open. There is likely no framework in place to secure a game that has been preloaded.
Lastly and the simplest answer really, did it ever occur to you, that GoG hasn't got preload available, because they're not allowed? I've heard rumours that there isn't a preload available for Steam either (something you may want to investigate).