Riot Games Engineering Manager interview questions

I was contacted several times by Riot recruiters saying that my background and experience would be a good fit for the engineering management position. After reading reviews on glassdoor I said no thanks several times. However a recruiter friend of mine joined Riot and once again suggested that I interview. He indicated that I would be a great fit and even named 5 teams that indicated they'd be interested. He said that for all management positions they do a technical screen and the team I selected to interview with did the technical screen first. I said okay but that I had been focused on management for several years and was out of practice. He suggested they would only ask questions that were in my technical expertise on my resume. He also suggested that mangers were expected to be able to code at an "associate" level. Instead, the technical screen was administered by two Sr. Engineers who had no knowledge of me or the position I was interviewing for. The main part of the interview was a standard algorithmic interview of the HackerRank variety and although I was able to discuss the O(n) solution I could not come up with the O(log n) solution during the interview and therefore was not selected. Of course Riot Games can interview Engineering Managers however they'd like but it would help for the recruiters to be more up front about the interview itself and not try to encourage people to take interviews they are not a fit for. Be aware that this interview is a requirement for moving forward at Riot.