Prezi interview questions

I have had the interview for CS lead position. The interview has been re-scheduled on the same day. The HR started the interview directly with a series of behavioural questions. Overall, I shared my experience, but there was no chance to get to know the hiring process and Prezi's culture.

She asked so many detailed questions that I wonder what they will discuss in the next step of the interview. Additionally, she mentioned that she would get back to me with an answer this week. However, just five minutes after the interview concluded, I received an email stating that I would not be moving forward. While the experience was valuable for me, I can't help but wonder why I spent 45 minutes on what turned out to be a fruitless interview.