I do think that traders needs Technical Analysis knowledge and can get more benefits from it if mastered. While investors would get more benefits from Fundamental Analysis. I come from that decision because :
Indeed, a trader needs knowledge about TA and moreover master it in order to analyze the market once they want to take the position. This analysis is very helpful for trading in the Spot market or even in the future or trading with leverage, to set the Long or Short position.
Basically, TA is more complicated to master moreover it is about analyzing the graphic, and the possibilities of the charts to rise up or go down at the certain rate. TA is always needed for traders even there is no specific news that will be the FA. But if there is specific news in this case certain FA, it will also help to get a stronger TA at that time.