sure, but it makes the contribution more difficult as people have to minify the script as part of their contribution (otherwise their contribution is ignored as the minified file is used).
To me, the git repo should contain the source, and then the minification (or the less compilation) should be done at deploy time (using Assetic eventually). But I think using the unminified base.js file is far easier currently (especially as it avoids the need of a real deployment process)