The wedge was drawn before the dip outside it, following the support lines. Sometimes he uses wicks, sometimes the candles that's why it looks like that. TA is not an exact science. That is why Haejin draws approximations he thinks are the best for him and uses forward conceptualizing to draw his lines free hand based on years of experiance. If you're trying to put exact sciences to peoples greed and fear than its going to be tough.

You must identify your own patterns and use your own knowledge to give you the best picture, as he does.

Watch all his videos, especially the Fibonacci one, it gives very good detailed insight to why he does what he does and how he does it. If you don't agree, thats fine, you can try your own stab at it.