It reduces the chance of issues, certainly from the production side of things. Audiences invariably react and either which way, I wouldn't blame them as the show has decades' worth of content, the style of the content changes all the time, audiences have a right to feel what they want, and new people will sometimes make up for those who give up on the show. It really is the greatest show in the galaxy, and the show must go on.
Orwell and others of loose inspiration, certainly. Even Agatha Christie, HG Wells, Greek myths, and so on, only had so many stories to offer inspiration from. If nothing else, the show is now drawing upon other things. We won't know what will really be shown until it is, and some assumptions based on predictions some make are based on what the show may or may not need. Having to figure out what the audience wants is a chore in its own right. For everything else, plenty of websites will offer similar content.