Oblong Industries Flexibly Capable Software Engineer - Cloud Full Stack interview questions

The interview had an initial phone technical screen then on-site interview that lasted for whole 8 hours (full day) a three-hour test followed up by a four-hour interview with four different people and one hour lunch. The interview was very easy and questions were answered with no efforts. Not a single one has an idea what the above title is about or what the expected requirements from this position. NOT a single one was able to answer my questions regarding this position clearly. After spending 8 hours from my life and precious time with them, I just got an automated email saying "After reviewing your application, the team has decided to move forward with other candidates they felt were a better fit for the Flexibly Capable Software Engineer - Cloud Full Stack position." and when I tried and sent am email to them asking about an actual feedback I got no answer. Do NOT waste your time by interviewing with them, they don't know what they are looking for and they have zero respect for you time.