Based on the parts indicated, the bolt, bushing, and cover, it looks like Ford will replace the single bolt with a larger diameter bolt to increase the load (bearing area) capacity of the bolt. Regardless of the intent for using the 3-bolt subframe, the indicated fix is much cheaper than replacing the entire rear subframe, etc and will likely be a good fix for 99.9% of customers. Personally, I want the two bolts (4 total), but those who get the final Ford fix will be fine as well. I do NOT want the E-brake auto-on function, so I won’t be taking mine to the dealer for anything…, other than s trade in for an electric vehicle in about 5-10 years
FYI, the Mazdaspeed6 required a rear diff mount upgrade if you wanted to launch it as well. The oem was cast and would snap under shock load where the aftermarket mount was forged.
The #1 problem for Ford here is the safety aspect of it rolling in Park.