Prediction is the core of bitcoin market. Without prediction, entire market is bound to fail. We invest in bitcoins because we believe that the value of bitcoin will be high in future. That's one kind of prediction.
Also majority of the crypto trades are based on short term predictions. If people stop predicting/speculating bitcoin's price, the market movement will be halted and the growth will be stopped. Bitcoin is largely a speculative asset. Without prediction, nothing will be achieved.
I agree with you, market predictions are important for tomorrow as a picture, at a minimum we will know what will happen tomorrow even though the prediction is also not certain the validity of the truth is true but at least we can prepare everything that will happen, so my opinion predicts it is important especially the world of commerce is a necessity now that modern times are all sophisticated so if you miss the information it can be said to be less updated.