Resolution: Won't Do
Opening https://picard.musicbrainz.org/downloads/ in IE8 log two errors in its developer console:
- Something about an attribute or method not being support in jquery.min.js, line 4, position 6105
- Bootstrap requiring jQuery
I think this makes it so that clicking on the download button doesn't open the mirror selection menu. MB itself still supports IE8, so the picard website should as well.