GiveDirectly interview questions

GD reached out to me, asking me to apply. I thought the position was a great fit for me based on my experience and education, and I applied immediately. A few days later, I was asked to interview. I selected the first available time slot. I prepared for the interview by reading nearly everything on their website. The interviewer was 6 minutes late calling me. I had to email her asking if we were still talking. I thought the conversation went fine. Simple questions asking me about my experience and thoughts on poverty as well as what I liked about the organization. A few days after the interview, someone emailed me letting me know that I didn't move on in the process, and they wished me luck in my job search. But, I was not job searching. They had reached out to me saying they thought I'd be a good fit, not vice versa. I was surprised that I wasn't moving foward and couldn't imagine what I could have said during the very simple phone screen to disqualify myself from the process. Their website says they value direct, constructive feedback, so I asked for feedback about what I did or did not do that caused them to lose interest so quickly. No response. I guess they do not value direct feedback as much as they claim.