For the most part, yes, longer brace height equals a more forgiving bow... not necessarily more accurate. More forgiving meaning that with inconsistancies in proper form a shooter can achieve better results. Shorter brace height (someone please correct me if I'm wrong) allows for more string travel which allows for faster bows. When you have more string travel your arrow is in contact with the string for a longer period of time which makes the entire "shot" more critical. STS style systems (for the most part) aren't designed to counteract a short brace height... more of a vibration reduction system.

With proper form you shouldn't notice much difference in accuracy, but it may be more critical of proper form.