Barbara Ramiro may not be an architect, but Martin hired her over a year ago to work on the UI, and she is starting to have an impact.
There is other good work going on (driven by developers even ) for example MDL-30637.
P.S. I am pretty sure Forum NG has the "see/grade all a student's posts to this forum on one page" feature. At least, we ahve that for OU Wiki, and if we don't already have it for Forum NG, it is on the to-do list.