It's a fairly similar logic though, isn't it? They have other teams coming off other projects, so rather than leave them idle until Broken Age is finished or going to a publisher for a project, they decided to Kickstart another independent project.
Independent-in-theory though, yeah? I mean, if Broken Age is running over budget (as they've acknowledged is the case), money has to come from somewhere. I don't think it's super unfair to wonder if that's what this is in part about--whether they hope to use these funds while Broken Age is in development and recoup it to fund Massive Chalice when Broken Age ships.