Bitcoin Sentiment Analyzis

I recently looked into the sentimental analysis of markets and found the "Crypto Fear & Greed Index, (https://tinyurl.com/ycuwlkvh) quite interesting. The chart seems to be quite on point, the herd is fearful right before prices take off, and greedy or delusional right before the market falls. However, it seems that a manipulated market might not always care about the general sentiment, as seen clearly in the latest dump scheme of BTC price.

If you compare the Sentiment History chart (check the link), these current levels of extreme fear seem to indicate a good buying/not panic selling opportunity. What do you think?