The description verbiage under 400A & 401A looks correct.
But, using the configuration tool, when you select 401A and scroll down, Street Pack shows as included - it auto checks.
Also, if you look at the 21" wheels, it also auto-checks and shows as included.
Also under the 21" wheel description, it plainly states "ST Street Pack is included in ST Equipment Group 401A."
The picture of your configured car also changes to show street pack when you select 401A.
Not a big deal. But to me, the Ford site is clearly wrong (based on every 401A (non-street pack) vehicle I can actually buy at a dealer).