My mistake….

There is some evidence of this, partially in her coloration being nearly equidistant between Spitfire’s yellow and Soarin’s blue, but mostly in her attitude, drive and talent.  Lightning’s flying ability is prodigious, and if she were the daughter of two of Equestria’s most celebrated flyers then she would be considered a legacy, not uncommon with talent.  The desire to impress her mother, and father would explain her tendency to push herself further than any other, despite the risks, although this would depend in part upon her upbringing and relationship with her parents.