You mean Caveat Emptor?
Learn to read Kickstarter T&C's and get over yourselves.
It's just a game, folks!
If some of you get so wound up by this change might I suggest you re-evaluate your priorities in life?
Yes, things can change in Kickstarter, and some games have not been completed at all. However, the key competition for the game is probably Eve, and the main reason myself and many others do not play that is because they don't want an environment which changes significantly while you're away having a 'real life'. Since our priorities are NOT the game, we want just want to be able to dip in and out now and then, and not find our rating has plummeted because we can't devote hours every day to gaming. (That's why I stopped playing Eve.)
Also, the main time I have available for gaming is while travelling on the train, and the network signal is not reliable then, so if it's online only then it rules out my main playing time. It was an absolutely KEY selling point to many backers, because the online option is already better covered than the offline one. You're talking people who, like myself, played the original Elite on the likes of the BBC micro, and yearn for something from its creator, and who are now feeling... shafted.
Additionally, the online dynamics are often very different - when you get players camping out particular locations so that you get blown out the sky as soon as you go to an area, and as opposed to being dumped out mid jump by Thargoids very, very rarely, this can prove a common experience. If you perhaps have servers which are PVE or the like, then this might address that, but would be odd if you encountered a craft and couldn't damage it. Alternatively, if it was run like Guild Wars, so you're often only interacting with a few other players and can easily group together with friends. However, it doesn't really replace the obviously massive demand for an offline mode.
We were offered it, we've paid for it, we're demanding it, give us it. End of story.