AcuityMD interview questions

The questions were extremely abstract and random and I was given zero context or any sort of concrete numbers or expectations around cases I was given on the spot. After months of interviewing, I was rejected because my experience was not "deep enough?" They are not able to define this feedback. Incredibly disappointed in my experience and this explanation. I think my experience can be gleaned from my resume. Why waste hours of my time and theirs to get this useless insight?

The interview process started very smoothly, where the recruiter clearly explained each step in the interview process and what I could expect. Each team member I met with was engaged, asked intelligent questions, and was able to answer my questions. The hiring manager was eager to fill the role certainly seemed like a good person to work with, so I was encouraged with how things were progressing. Things went south during the final step, which was a presentation where I presented to a panel, and they asked questions throughout. While I was able to handle most questions fine, one leader asked randomly about the pricing for the products and services at a company where I used to work (which is not a competitor to AcuityMD). I tried to deflect and re-center the convo but he kept pushing, asking "if the prices were some kind of secret". Not only is this extremely inappropriate in this or any setting, but there were 3 other interviewers in the presentation, who never spoke up, and might have been just as confused as I was. I didn't give up anything and shared my experience with HR after the presentation. I got a generic rejection email in the days following, but my email was never acknowledged. This company might be a good place to work in general, and there might be some good people there (not the one guy), but this question and how it happened during an interview should be a red flag.