I would have worded this as "given around 50 interviews" because "taken" sounds (to my ears) like you were the candidate, which I don't think is the case here.

I would have worded this as "given around 50 interviews" because "taken" sounds (to my ears) like you were the candidate, which I don't think is the case here. I would not ask an interviewer what I could have done better before I knew the outcome, because I'd prefer to be a confident candidate not second-guessing myself. But I'd like to know after the decision was made not to proceed. (or even if the decision was made to hire me!)