Thank you for playing & reviewing the game, and taking the time out of your day to do so! :)
You raised some good points! For me personally, you enjoying your time with the prototype is more than enough! If we go forward with this, we'll try our best to introduce new mechanics and gameplay elements to spice things up! Right now the basic gameplay loop is in place, though! :D To us the theme being so open ended was a joy, since it gave us ideas and inspiration to bounce off of and make what we'd love to make, while at the same time it didn't limit us! ^^