Of course if someone comes to the concert they were drawn, but that does not mean everyone who is drawn will come. You may have been very excited to see the concert and bought tickets months ahead of time, but the night of the concert a family member had a serious illness and you chose to go to the hospital to be with them instead.
You are forcing the word drawn to always mean to 100% completion, but that is not anybody's definition but yours. It is not the dictionary's definition.
It is actually another example of your circular reasoning. You are saying everyone who was drawn and came to the concert was drawn.
if a person didn't go to the concert, they couldn't say they drew you to the concert. you might have been drawn.(end of sentence) but you were not drawn TO the concert. When a concert says they dew a large audience and only 1 person came, would you say they were correct? Well, thousands of people wanted to come but at the last minute couldn't come for some reason. No, only the ones that came were drawn TO the concert.