I like how their directions say to keep the paint off the hub area...but the red was obviously there on these drums front and rear, and most of the others I have seen. Quality control is #1.
Google "mopar red brake drums" and you get dozens of photos of the red all over the place, even up to the tips of the studs on the front drums. The only theme that runs through them all is that none of them followed the 2" of red "suggestion". LOL
Here's a guy selling NOS set of rear drums with a whole lot of red on them...for only $1,050.
https://www.ebay.com/itm/NOS-1970-CU...5.c10#viTabs_0