Blogs Directory - feature request - hide deactivated, archived, spam and deleted sites

The "Blogs Directory" plugin dutifully lists all sites, apparently even if deactivated, archived, spam or deleted. I'd like to be able to hide such sites while allowing active private sites to still be listed. One of many practical benefits of this request would be the ability to hide from multisite network users the "template" sites that I've created for the "Batch Create" plugin.