Probably not as the same issues would apply then as they do now.
Michael
Considered 'offline mode' was quite possible in the elite I played on my c64 and later on on frontier on my amgia500, the fact that you seemingly have design issues now tells that you designed your software wrong.
It's that simple, really.
So was it incompentence that made you not realize the issue with your design WHILE YOU DESIGNED IT, or did you never intend for offline anyway?
Anyone with a background in software projects knows that block designs of what code is supposed to achieve doesn't magically happen by itself, but is carefully designed (as well as the interactions between blocks) before you start coding. Hence the 'design' aspect of software projects before you start coding. If you now state the design doesn't let you do what you promised, and you made the design yourself, it only really puts your company in a bad light, regardless of which way you try to polish it.
I've contacted you through my kickstarter backer pages 'contact' button in order to get my money back, cause I cannot see myself backing this kind of behaviour from anyone.