Seven interviews sounds like a broken process. What did they learn in interview number 6 that they didn't/couldn't know at the end of interview number 5 ? Also

Seven interviews sounds like a broken process. What did they learn in interview number 6 that they didn't/couldn't know at the end of interview number 5 ? Also, spending a whole day interviewing in Seattle and not meeting any of the team you would be working with ? WTF ? Edit: I forgot some other points: The interview process is supposed to be about building trust and getting a feel for whether you would be a good fit for the company and vice-versa. This process sounds very asymmetrical: they only cared about whether he satisfied their criteria. This is further proven by finding an NDA to be signed on the morning of the interview. Couldn't they have sent it in advance so he would have time to read it ? What super secret details might have accidentally been revealed by their carefully planned interview process ?