Splendid Spoon interview questions

I applied for this position on October 29th and got an email from the hiring manager a day later to set up on a call. We then had the initial interview the week after (November 7th) and all seemed well. She gave me an assignment to do over the weekend, and then asked if I would be available for a follow-up chat with some other members of the marketing team (November 11th). When the time came for the call, I received radio silence. I decided to reach back out, and she finally responded (November 20th). I had another conversation that felt very similar to our first interview, with many of the same questions. Not sure why I was told about the other members of the marketing team. The hiring manager said that she wanted to bring me in to present to the Founder/CEO and COO, but our chat on November 22nd was the last time I heard from her. I emailed her 3x over the course a month to check in but did not hear back at all. I later find out through LinkedIn that they filled the position. While I was very excited to work for Splendid Spoon, I was extremely surprised by the lack of professionalism I experienced. I understand that they're a start-up and people are spread thinly (maybe that's why I never ever dealt with a recruiter or HR), but I hope that someone reads this and finds a way to fix their process. You wind up missing out on a lot of great candidates when you ghost them.

I was emailed a request for an interview I wasn't aware I had to call them when I rescheduled I couldn't get through using the Uber conference app they choose I notified the HR associate 10 minutes before the scheduled call of this issue and they claimed they hired someone else. This all gave me the impression that it was an unvitation to interview as I have never had a company have me call them for a screening and once notified that the app THEY choose, instead of just giving me a simple phone number, was failing and they ignored the issue totally maybe its a good thing since the company is apparently unorganized and lack empathy.