Well, I must say Superpro's customer service is excellent. I received a quick response after forwarding the photos to them. This was their response should anyone ever encounter this issue in the future:
Thanks for the reply. We have 2 different arms for the MK7 GTI. KTA252 and KTA262. 252 arms and standard arms and 262 arms are high caster arms. The blank arms may have been mixed up during assembly. The slight offset shouldn’t cause any issues but I will get the right arm out to you anyway. Thanks.
This makes sense as both control arms have identical production date stickers on them however the finish between each arm is slightly different. It was very refreshing to receive such helpful CS. I will continue to be a supporter and advocate of Superpro products.