Events And Adventures interview questions

I applied for the job on a Tuesday, was emailed the next day asking for an interview later that day. First interview was over Zoom. The interviewee was very relaxed (maybe too relaxed?). I asked "What did the person in the previous role due to succeed" The response was "Well apparently not enough".... The next day I was asked to come in for an in-person interview and prepare a calendar of events - that's it. Very little details and expectations were provided. I had to ask several follow up questions about what they were looking for and was told to "not overthink it". Fine, no problem! I spent time and effort coming up with my idea of a fun and detailed event calendar in my city. The in-person interview was fine, the same interviewee again was very relaxed. At one point, they got up in the middle of me speaking to get a water, which felt odd. I felt like I did a very great job and fit the requirements and then some. They seemed flabbergasted that I wanted to give my current employer 2-4 weeks notice but even said that I could start part time to transition sooner. With all of this, I was pretty hesitant about the position, but then what really got me was completely being ghosted afterward, with no "we are going with another candidate..." Just nothing. Seemed extremely unprofessional.