Standard tell me about yourself and behavioral questions that are situational like what would you do in this situation if a student ______. Overall super positive experience with everyone on board and it was around 3 interviews

I went through all three interviews, one phone screen with a manager, one video interview with a manager and a current Success Advisor, the last one over video with the Program Director and another manager. At the end of the final interview I was told that the next step would be contacting my references and that I would hear back about their decision in a couple weeks. I never heard back from anyone. The job start date has passed, so clearly I did not receive an offer nor did receive a rejection. In the end I feel disappointed and disrespected but also appreciative that I did not get an offer and accept it because I think this lack of communication and professionalism must be a reflection of their organization. I would not want to work for an organization that ghosts its candidates after they spent 3 hours of their time for interviews, as well as time to complete a thought experiment assignment ( took around 45 mins) before the final interview.