The idea that having to go through a ton of interviews adds legitimacy to a position or company is laughable.
I agree. Just shows lots of layers of redundancy
When I interviewed fifteen years ago for the management position I am accepted and am still with, I had to go through two interviews. In the same time period I interviewed with another organization as well. With that group, and all in the same day, I interviewed with three different teams within the organization. On the way home I was called and offered an interview with the board of directors the following week. They were flying me out there, so I thought that might be a good opportunity. However, before that, I was offered my current position. So I declined the final interview.
I don't mind interviewing, and while I considered myself ready for the position I had no previous management experience.