Similar to "Reveal in Project" or "Reveal in Finder/Explorer" it would be nice to have an additional "Reveal in Media Browser" option that opens the chosen file in Media Browser, including showing the folder path in the left hand column.
One of the common uses of "Reveal in Finder" is to quickly find other takes from the same card/folder that have not yet been imported. Because some file types can not be natively previewed in Finder or Explorer (eg RedRaw, or ProRes on a Windows machine), it would be much easier to reveal the files directly in the Media Browser so that the other media can be previewed and imported from there.