Fargren is asking why a recruiter would want to to withhold information.

Your answer is "More information always helps." That doesn't answer the question.

They are asking why the information is shared in that order.

Yeah, the company can tell the candidate the salary they will pay for someone in the role. If that doesn't match the candidate's needs then the process stops. If the candidate's performance during the interviews shows they can't function effectively in the role, the process stops.