Your sincere statement is already noted. People like you are very important to us because it shows that you not only played the game but you CARE about it. Thank you very much! :)
Yes, jumping and hanging on the edge is something to refine. Bit by bit we will improve this prototype but most of our energy we want to spend on finding a publisher and building the full version.
We are aware of many non-immersive situations in the game - that's the beauty of a prototype, we show the idea but it's not very consistent in details. In the full version I assure you that there will be no such situations. :>