That makes sense.
Think about it. A hard hit ground ball can shoot through the infield and be a base hit. Flyballs have to be well placed bloops to be a hit. If it's hit hard enough, it's not longer a flyball, it's a line drive.
This is why I think the whole separation between groundballs, flyballs and line drives needs to be reworked. It really is more about how hard you hit the ball, and that needs to be taken into account if we are to understand what really happens with balls in play. I'm hoping as PitchFX advances, we will be able to do more of this.