Well . . . I ended up opening a ticket with RIM.
Their official answer - In 5.0, there is no way to run a report, listing all users and number of redirected folders. They suggested to view each user one at a time in BAS.
Bad enough to have to click through each user, but then you have to manually count each folder selected. I don't see a total figure. Really? Really?
Not sure why this was taken out.