My personal impression was that there was 0 intention of hiring people like me from the very beginning. Most of the interviewers were busy doing their own stuff on the side and sometimes I felt they didn't listen. One guy was typing and laughing all the time in front of me while we were discussing serious stuff. 7+ hours of my time are just wasted with this nonsense. I wouldn't spend energy on these guys because it seems they are not serious at all.
Also, the fact that managers are not required to code but have to pass 1-hour hacker-rank coding interview is a bit controversial.