I guess.  Even though that URL structure will probably never change it's nice to do things in a way that doesn't silently break if you change your url structure.  Also, this assumes that anything under reports/ is a report, which with my saved reports  and also I believe all the adm reports pages is not necessarily true.  I think the best way to do this would be to add it to the javascript https://github.com/dimagi/core-hq/blob/master/corehq/apps/reports/static/reports/javascripts/reports.config.js