Dynamic Yield interview questions

I was first interviewd on the phone by the HR recruiter, then made an interview with the recruiting manager, followed by a home assignement (4 days to submit). Then, I arrived to the offices to present my home assignment

6 weeks of Interviews and Assessments. For the final presentation they allow you to meet with a CSM for feedback. The CSM joined a call, was not prepped at all and didn't know the assignment. They then told me the assignment was in a good spot and told me to remove thing they call "red herrings" During the presentation which had 15 people on it - the VP spent most of their time on their phone barely paying attention. I did not get the job. Getting feedback as to why was like pulling teeth (after 6 weeks) and was told that my presentation didn't address all scenarios (after being told to remove them!). Just bizarre.