There are six edit suites and forty people who need one. The reporter who wants to trim eleven seconds off a package waits for a seat, or asks an editor to do it, or gives up. Meanwhile the material has to be copied to the suite, the graphics have to be found, the brand assets have to be located on somebody's drive, and the finished file has to be copied back.
ProEditor removes the copying and the waiting. It is a real multi-track editor — layers, keyframes, mixing, effects — that happens to run in a browser tab, on the same installation as the archive it is cutting from. There is nothing to move, because the material is already there, and there is nothing to license per seat, because a seat is a browser tab.