The FHS has been poorly done for years. For e.g. where is the canonical place for a Web vhost root? /srv/www? /srv/web? /var/www?
Minor details (ahem capitalized directory names ahem) aside, having a designated place for each distinct software release (/Programs/Bash/3.0/bin/) in my personal opinion looks more practical than having a separate database of package-installed files.
Unfortunately, the projects seems to be dead or nearly dead.