Things would be a lot clearer if positivity rate was the reportable number, not absolute number of positive tests. This would also encourage countries to test more rather than less.
Are you suggesting that the media is to blame for something?
If the results presented are hourly, daily or weekly, that’s just the resolution of said metric.
Maybe you’re arguing there isn’t much point in having higher resolution metrics than weekly but I don’t see how taking more frequent measurements matter, it doesn’t change the outcomes.