You know, none of this is new.
Ford has used electronic speed limiting on all it's cars and pickups since they began using full electronic engine controls.
The GT's are also limited, but to 155, and the only reason they are set that high is because the driveshaft is built to be able to do it.
My '99 Lightning was set at 155 too, although it wouldn't quite get there, about 145 tops. My current '94 Lightning is limited to 115 just like the V6 Mustang.
My old '04 Mustang V6 was also set to 115.
So, like I stated, this situation is nothing new, same as Ford has been doing for years, same as chebby and dodge too.