Yes, I agree that it’s a very strange benefit for a feat called Crafter to give, but my interpretation is consistent with the text of the feat in the UA:
Your are adept at crafting things and bargaining with merchants. You gain the following benefits.
Tool Proficiency. You gain proficiency with three different artisan’s tools of your choice.
Discount. Whenever you buy a nonmagical item, you receive a 20% discount on it.
Faster Crafting. Whenever you craft an item using a tool with which you have proficiency, the required crafting time is reduced by 20%.
It was weird then and it’s weird now.