Clinical Research Fastrack interview questions

I interviewed for the marketing coordinator position - now called marketing writer and design specialist. I was given a phone interview and a second interview via zoom with the hiring manager. I then was told I would hear back about a 3rd interview by Friday (my interview was on a Tuesday). Come Friday, I didn’t hear back. I sent a follow up email thanking them for their time, and asked when I should hear back. No response. Monday I find on Indeed and Glassdoor they removed the original job posting and renamed it something similar, from “marketing coordinator” to “marketing writer and design specialist”. Tuesday Morning, a full week after my second interview and 4 days past when I was told I would hear back, I sent a second email asking if I should still expect contact. I finally got a response via email before they closed for the day stating “they were going in a different direction.” There are no hard feelings that I wasn’t chosen, and I understand things get busy, however it is unprofessional to ghost candidates after multiple interviews. Everyone deserves a simple yes or no and it shouldn’t take multiple requests for an update to get that. Clinical Research Fastrack should have set the expectation that I would hear back later than expected or tell me that I did not fit their job description after the interview was over. Overall, their communication processes need some serious attention.