I'm sure others will mention it if there is a problem, the thralls are definitely at their best when they aren't carrying ranged weaponry, much more proactive in combat. Hopefully they have sorted themselves out and will behave for you.
I only had to remove the imperial bows once and I never saw them again. It would be strange if they are willing to create new bows when they won't create new swords...
I'm sure others will mention it if there is a problem, the thralls are definitely at their best when they aren't carrying ranged weaponry, much more proactive in combat. Hopefully they have sorted themselves out and will behave for you.
I only had to remove the imperial bows once and I never saw them again. It would be strange if they are willing to create new bows when they won't create new swords...