Thank you for the feedback!
Yes, currently the game is pretty unbalanced. At some point the HP scaling should overtake damage scaling, but if you didn't lose by like year 20, it will probably take a long time. In the screenshot you actually killed more than 50%. There are basically two progress bars, the first one which shows progress to 50% and the second (with rainbow fill) for the other 50%.
Regarding the log I added my time zone (GMT+2).