@JudgeWargrave
Upon further inspection, the following rule seems needlessly restrictive: " You may not voluntarily deploy undrafted units except on chapters with talk recruitments, specifically 5, 9, 10, 11, 12b, 13a, 14, and 17."
This makes the rule where undrafted units being able to dig items in the desert redundant since no thieves are recruited in Ch. 15 (not to mention the lack of undrafted fliers means the thieves will pretty much go nowhere), alongside just making some recruitments less reliable since an undrafted would not be allowed to get an undrafted recruiter out of the way after recruitment is complete.