Because I believe I can do better than a bot when it comes to drawing trendlines and S/R... Just looking at your chart I can tell I would have drawn the lines at different levels.
See the support at 12876.9 for example. That is NOT a good support in my opinion, the system just drew a line at the latest lower low. A good support would be at 13000, because the price bounced 5 times (once as a resistance then 4 times as a suppport), and it is a psychological level (round number). Same with the line connecting the highs, it just connected the first high to the latest high, ignoring all the action in the middle.
Finally, I don't trade the daily. The system is even worse on lower timeframes.