I have had this argument before: Technical analysis provides a large basket of tools and concepts for trading. There are successful traders that don't use it, and there are successful traders that do. Ultimately, it is up to each trader to explore technical analysis and determine if it is right for them. It doesn't guarantee instant profits or 100 percent accuracy, but for those who diligently practice the concepts, it does provide a realistic possibility of trading success.
Charts are not the whole story, I didnt like the fundamentals of MAG and i didnt like the ramping on HC.