Uhhh maybe because nothing in life, and certainly trading, is certain. Even if someone is on a world record losing streak there is always that possibility it will end just when you bet against them.
%% Good points; they[IBD] now promote options somewhat, I skip 80% to 95 %% of that. Even though one could profit from their put call ratio/under charts , if so inclined.Still helpful, but they did some real cost cutting, like most newspapers its now Investors Business Daily delivered weekly LOL. Still pro-they never called a bear market a dip/buy that dip.LOL.
Price is random walk, news events are outliers. There are no dips, highs, low. It's pure statistics and econometrics, words are for newbies in in trading, for pros only numeric data matters.