I am understanding the question a bit differently. I'm a bit lost in what you're actually asking for.
If the government gives a response to a paper petition as a paper document, the only thing that's noted in the Journals, or possibly the Debates, is the fact that this was actually done. It becomes a sessional paper. In the old days, sessional papers were printed as companion volumes to the Journals, but that was at the end of the session. Unless you actually knew when a response or a sessional paper was deposited in the House, there was no easy way for you to find it or make a request for it. When it was a paper version then, you had actually had to wait until it was published. We used to publish volumes and volumes of sessional papers as part of the journals process.
If you're talking about who finds out when a response to a petition has been tabled in the House, you actually have to do a search. Then you find out that it's been done, but you don't necessarily have access to the response. You have to make a request to have access to the response.
If it's done electronically, all you have to do is to go to the petitions section on the House of Commons website and access it. The process of searching is a lot easier. The information that you want will be found, as opposed to there simply being an indication that something that you're looking for has been done, without actually providing you the information that you want. That's why going through the electronic format will provide tremendous advantages to those who are petitioners and want to know how the government is reacting to this.