Since I have to assess this opportunity using the process you seek to understand, I'd prefer to keep that to myself.
If both the candidate and the employer are honest in communicating their priorities in regard to what they hope to get out of the relationship it allows both parties to better understand each other. Additionally, assuming they are sufficiently aligned, such discussion allows both parties to focus on things that matter to everybody involved and not waste time quibbling over things nobody cares about.
PS. In a perfect world every job posting would state compensation, all perks, and an honest and detailed description of work environment. And every interview would consist of just one simple question: "are you qualified to do the job?". Unfortunately, the world we live in is a bit more complicated.