BC Centre for Excellence in HIV/AIDS interview questions

I had a screener call followed by an interview with two people. After the interview, I was given a pretty long assignment to complete in just under a week. They then ghosted me after this

The process was relatively quick initially. HR reached out and within a week had a panel interview. It was a straightforward interview with a back-and-forth and was informal at times. The team seemed interested in my background. They said they would be in touch soon. However, it's been well over a month and I haven't heard from them. I am unsure if it is due to not being organized, but it is very inconsiderate to have people take the time to interview only not to follow up with them.