Maybe he's capable of keeping track of all that junk all at once.
But I know that I'm definitely not.
Why does it matter so much to you then? I personally don't like TA myself, but if it looks like it's working for him and not for you, then why bother? He uses his own strategies and indicators, and you use yours. Heck, a trader might have a million lines on his chart and I simply wish him the best with his trades and I simply move on, because it's not going to affect me anyway.