Dynamic Yield Technical Account Manager interview questions

Applied on LinkedIn, followed by a phone interview with the Hiring Manager. After that, I had a home test, and presentation on site. One a very big negative thing about the interview. They booked me for 3 hours, when I arrived to the office, no one welcomed me. I just sat there. After the presentation and my first meeting approximately 80-90 minutes into my interview, Hiring Manager told me what I am lacking and probably not a good fit to the position. Basically, I could not even speak with the other interviewer and just walked out by myself. I thought that was weird. Besides being rejected this way, leaving as if you are nothing wasn't the best experience.