it's.... it's software. Complex software (like an editor) is never finished. At some point all software is eventually abandoned. Thus all complex software is abandoned in an unfinished state.
This is a simple truth.
For my part I think they've delivered on the spirit of their Kickstarter. They released a very usable editor that does some amazing shit. It doesn't have every feature in the Kickstarter video, but that's because reality kicked in and they had to prioritize, and found that some of the features didn't work out as well when put to other users.