CeekBird: You can get the digital content on the Larian Vault, same as with DOS1 (Zandalor's Underwear and stuff). Just register with the same email used on Kickstarter and you're good to go.
Tbh, that should be a temporary workaround, at best. The game has been released nearly two weeks ago, now. While I'm sure everyone's busy at Larian and GoG, this should have been fixed. Larianvault says the key's is a Digital Collector Edition, it should reflect on GoG and it should be listed as such here, with all the goodie.
Steam jey, on the other hand, seems to fine. It makes GoG looks unprofessional, whether the issue is on their side or on Larian's. It's a minor annoyance, but saying "hey, do to this other website yo download what you should have gotten here" isn't (and shouldn't be) a reasonable solution.
Do we have any official words or ETA on this ?