Integrated Healthcare Association interview questions

Had a phone interview with someone from HR and then a zoom interview with one employee. The HR employee was very nice and thorough. They did have me prepare a presentation/case study for the interview and even had a dress code listed on the zoom email. I was surprised that after asking for a case study and presenting this in the interview, I never heard back. It would have been a courtesy to let me know I did not make it to the next round. Especially when I prepared something for the interview.