Riot Games Senior Software Engineer interview questions

I talked to a recruiter over the phone first during a screening process, then completed an online technical test. After that, I was brought on site for a full-day interview that lasted from about 10 AM to 4 PM. During the on site interview, I talked with about 5-6 different people, and only one person asked anything remotely technical. They're very big on culture and fitting into their mold. Apparently the online technical assessment was enough for them to determine my technical skills, so they didn't feel a need to touch on that during the in-person. However, this might be different for other departments. The only negative thing I would have to say is that after about a week, the hiring manager asked me to go back in person to tell me I didn't get an offer. I'm not sure why he would do that when a simple phone call or email could have sufficed.