Do you have a source for this?
I reported my own post and deleted it. It turned to "Good".
Having to wait a minute for the status of a report to get updated is strange behavior.
There are other places on this site where updates are not real-time so I don't find it "strange" at all.
Also the report page says: "When a post is deleted, reports for it will sometimes stay in unhandled status for some time before moving to handled status."
More importantly, a reporter's individual report stats are not necessarily important in these cases. What is important is that a mod sees the report, and has the opportunity to research the issue and take action.
I don't know what you're still babbling about. You made a claim (sorry, "remembered") that seemed to be incorrect so I checked. Mods can't see deleted posts anyway, nor should they take action on deleted posts, so whatever.