I'm not sure how it could be what you are suggesting. Other maps are giving armor fine and console is appropriately echoing a value of "2".
But I will try it's just for you.
EDIT: Game mode is casual. mp_free_armor is 2. As you can see I have no armor.
https://steamcommunity.com/sharedfil...?id=1490611024
Edit2: I am also curious why I wasn't able to override the workshop maps with the roundtime settings.