People need to remember that these are in progress games. If they were at all familiar with software development they'd know it's rare (and time consuming and, if money is involved, expensive) to be able to plan for literally everything before development starts. Ideas for improvements and necessary changes happen. If you're playing an in development game you take that chance.
Zargon_games has offered a good compromise in the form of being able to start at any chapter. I'm going to restart from the beginning and create new saves because I use my saves as bookmarks and I bookmark within chapters, but that's my choice. I could just pick up where I left off.