Hi Ed,
totally agree and we try and do that with the redesign in Snap. If feedback is available it is shown on the page directly under the activity description, along with who the feedback is from and the date it was given.
Not sure we can do much in a theme about the way assignments are processed when converting formats - but lets see what happens in future iterations.
The screenshots are from the latest version of Snap, which is available from the Moodle plugins DB with the full release at the end of December.
Best wishes
Stuart Lamour