I mean, you're right in the sense that if you're applying offline all your documents are submitted at once. Often, online applicants receive messages to upload documents like medicals etc.
But if you're an offline applicant and you link it online, you'll get status updates about your application. But you still can't do anything except wait, which is why you're right because eventually you'll just be accepted or rejected. However, most people are curious to know what the status update is, which is why it might prove to be useful to some people.
In my case, I passed my medicals and I got the update that my eligibility is being reviewed. And from what I've heard that's the last step hopefully