With design software these days engineers know almost exactly what forces riders will be experiencing, and when there have been issues, it's generally for unique elements ( ex.) Maverick's heartline roll, and even then they knew it was going to be extreme). Especially on a launch where the only factors are how fast do you need to get, and how quick do you have to accelerate to reach that speed, I can't imagine they were surprised.
In addition, the ride is designed to have 24 second blocks, and that section from the launch to clearing the break run is one of the blocks that's right on that limit (about 22 seconds), so it clearly was designed to be that fast.