We also plan to update the Duty Finder. As there are a significant number of updates planned, we're considering focusing on this during the next Letter from the Producer LIVE. One particular addition I'd like to briefly mention is random matching. This is a matching feature that will let you join instances at random after choosing one of several categories such as "leveling dungeons," "high-level dungeons," "main scenario primal battles," etc. By using random matching, you'll be able to obtain Allagan tomestones once a day for each category.
After selecting a category for random matching, you will join whichever instance has the fastest matching speed. This feature will also make it easier for new players who are progressing through low level dungeons and story primal battles to be matched up.