I'll say this and then not respond to this anymore. I move back and forth between the two games for reasons beyond everything mentioned here. And it doesn't matter how I do this, it is my choice. Going this route keeps me from getting burn out working on one game (like SO many other devs have done and abandoned their games because of it). I do it to keep my sanity. I do it because I want to. Whatever reason you need to hear, that's why I do it that way.
The only reason everyone waited almost a year for the Last Human release is because I went through major illness, deaths, depression, the full time job bullshit, and enough other bullshit. Though I suppose if some have only recently started following me, you may not have known that.
So, that's the end of this topic and hopefully that answers any more questions. I have no plans to change how I do this. Sure, I may sometimes do more than one update in a row with one of the games. It all just depends on how things are flowing for me in my life. I do what I can, when I can.