Blue Apron interview questions

I applied online and got a reply almost instantly to do online interviews on a platform called Take the Interview. The process went by fairly quickly from there until the final interviews where I had to meet with several people from the recruitment team. Everyone was super friendly and I enjoyed the interviews. However, it took them almost a week for them to get back to me with a rejection by email that I felt was not very constructive/personalized, especially for going all the way to the final interviews.