Recently I had a job interview at a German company. Almost the entire interview was about me and my skills. Basically, the interviewers named a keyword from my professional field and asked me what I knew about it and how I would imagine one could possibly use the skills associated with that keyword when working for the company. Then I was asked to react to the next keyword. Neither the job advertisement nor the interviewers mentioned what exactly the team I was supposed to be a member of was actually working on.
Right in the beginning of the interview I was told that it will not be necessary for me to ask any questions because HR had a document with frequently asked questions they were willing to send me if the interview had a positive outcome. Nevertheless, I was allowed to ask one question in the end. Then they referred to their unpublished FAQs.
How common is this type of job interview? Are there any good reasons why a company would prefer this one-way form of communication?
I feel this might be a "red flag", but I am still puzzled. Why would a company put that much effort into making a bad impression? I am still willing to believe that there are some advantages that I am not able to see at the moment.