Why is server downtime tied to installing the game?

Could we please just decrypt and install the pre-load? I get that the servers are off but I am not sure why steam cannot install the game at all as the early access are all staring at the login screen.

I would take a gander that they will use the decryption to spread logins slightly to not overload the login server.

same cloud servers?

I would imagine steam is the one who distributes and decrypts the game. Amazon or Smilegate has a completely separate architecture for the game servers.

Someone read this! Thank you amazon for letting pre-load unpack.