I don't want to go much offtop, but I wonder how many novels were abandoned by their developers.
I guess, the problem you described is not only about any of BB games, it's about development process, considering it's just (mostly) one person who may just doesn't have whole scenario vision, so they just don't know what to do to finish whole game. In addition, they may not fully understand the basic gameloop (it actually means much if we talk about sanbox-type novels). Plus, when we talk about some Japanese novels made and published, they're all made with studios (maybe small ones, but still), so if one of dev. team members stopped working, others just continue to work until the final release.
P. S. So I hope Alexey has his own vision of the story and it's just takes time to make it real during development process.