It is actually generally a good idea to throw the ball on the "high end" of the spectrum. Not every pass is going to be perfect and missing high is the safest place you can miss.
If you overthrow tight coverage to the sideline, you eliminate any chance of a pick and give the receiver a CHANCE to make a play on it. CBs are generally shorter than wide outs. Overthrows on deep routes generally go behind anyone on the defense. It is only an issue on screens, swings and short throws (which cam made serious progress with last year).
Another large factor is interior pressure. When you can't step into your throw the entirety of your mechanics break. You can't generate the raw flat power you need in the NFL that you generate with your lower body. As such, you can either choose to be sacked or make an "arm" throw that will require more trajectory to make it to your man.
The above is what really gives Russel Wilson an edge as a quarterback due to his baseball experience. As a fielder you need to be able to contort your body to supplement the multitude of odd angles you field the ball at and make a crisp throw immediately following. These motions are completely against conventional quarterbacking mechanics, but can be invaluable when you need to run around like a chicken with your head cut off and get limited room to pass.