Thank you for your very verbose comments!
Yes, development is coming to a close (finally!) The goal was to have 8 levels in the game, and level 8 is being worked on now.
When it's all said and done the development of this game took over 2 years - it was started on 02/20/2020 and we hope to have the Full non-Early Access version released probably Late April or May.
Of course, we'll come back and make fixes and tweaks based on feedback after that, but we probably won't add more content (unless the game suddenly explodes in popularity and people want more!)
We will add your comments to our list and we'll see if we want to try to implement or them or what we can do with them.