Postscript Full Stack Developer interview questions

I initially scheduled a date with their calendar management software, but it was rescheduled a couple days later. Then, the reschedule was rescheduled as well. The only interview that I had was a one on one with a talent acquisition person. They were there to ask and record my answers for the CEO (Adam Turner) to review later. The interview seemed to go well, and I was told that there were no glaring issues with my answers or experience. Afterwards, I was told that I would be contacted by Adam in the next day or so. However, I never received any communication from him, but only a very generic rejection letter from their application management software. I then reached out to the talent person who I had been in contact with to thank them for their time and to ask for feedback. I certainly do not think that any prospective employer owes me anything and vice versa, but they never simply replied to my message, even with a "we don't provide specific feedback" or a "there were just better candidates" generic response. It made me feel that once I was identified as a non-candidate, then even talking to me to ensure that my overall interview experience remained positive (even after a rejection) was a waste of their time.