Amazon Sr. Project Manager interview questions

Recruiter contacted me out of the blue. I initially said I wasn't interested as the job didn't fit my background or skillset, but I was eventually convinced to discuss the position. Several separate sources told me that Amazon was known to be a terrific place to work, so I moved forward. The first interview was with the hiring manager, who was great, I really like their style and how they conducted themselves and I felt good about the opportunity. Following week I spoke with a more technical person, who at the end of the fairly long interview said the position was more technical than I was and he didn't think I was right for it, but that he liked my approach. I mentioned that the job description vs. what I seemed to be interviewing for was one of my concerns about the position to begin with. In this area, at least, they seem to have a disconnect between how they describe their positions, and what they actually want out of them. I wasn't really upset at not moving forward, it was more that after two rounds of interviews beyond the recruiter screening (the second one being a fairly grueling 2 hours): 1) They didn't have the courtesy to let me know I would not be moving on. 2) After I pinged the recruiter for a followup, I still didn't receive a "thanks but no thanks" reply. I'm a little annoyed at this treatment since my time is valuable, and this degree of unprofessional behavior at this point in the process is not what I'd expect from company of this size and reputation.