It appears that you are sending back the 'most recent' status update back to the Container.
There are a few ways to handle this, but I might suggest using an "Action".
Give them a "Status" dropdown on the container, then whenever that status changes. Fire the action to create the "status log". Then they can update the info right from the container and you can apply the filtering needed to only show the 'active' ones.
Alternatively, based on your ability to use formula-urls and some small code, you can make the status changes be a 'button click'.
Even causing it to open as a pop-up window works too.
Finally, if mobile is not your friend you can make an html page that allows the same functions of grid edit, but are mobile responsive.
