When you the pull the plug on a project of this size, at this point (well into pre production by the sounds of it) it's usually a combination of factors. I'm sure that they weren't happy with the scripts but I'm willing to bet that it wasn't just the quality but the creative direction of the series, and it's likely that the budget had spiralled out of control too.
It's entirely possible that they get it back on track sometime in the next year or so but this is the last thing that Star Wars needs now.
It's entirely possible that they get it back on track sometime in the next year or so but this is the last thing that Star Wars needs now.