Cero isn't lightspeed anything, and Bala isn't 20x faster than light either. It's like calling Makankosappo light speed because it's name is quite literally some translation of "Demon's Penetrating, Killing Light Gun" because half his techniques have the word "光/light" in them. There's a better argument for Ki being light because Yakon literally eats the Super Saiyan Aura that illuminates Yakon's fight than there is for treating "spiritual light" as light. Yes, ki has better feats, but that's not the point as its taking the description or name of something to inform its properties. Uryu "outspeeding" his shadow could be as simple as him having jumped into the air to facilitate his motion, ignoring that a shadow doesn't look like a dot underneath a person in the first place. He's on panel one moment and not the next, that his shadow still lingers just suggests he possibly took a vertical exit at worst. In that same manner, as he travels he'd be casting a shadow trail (as he'd still...