People dont put way[/i] too much emphasis on speed and quickness measurables. Pointing them out and factoring them into the equation, along with all of the other measurable AND observable traits, is just common sense.
If a HS kid is already running sub 4.5, or 4.3 as in this guy's case, it means his speed is already a known. Theres nothing murky or uncertain about it and you dont have to speculate on whether or not it can be improved. We've all seen enough to know that 4.7 receivers, if they dont improve their speed in college, struggle to get open. Gee Scott, if he doesn't improve his speed, will struggle to separate. It doesn't mean he wont be good, but it will make it hard for him to be elite in spite of his other qualities.
Wilson isn't going to be an elite player, but least you already know he has the jets to get away.
All that aside, I'd take Scott over Roman Wilson. Johnny Wilson over Roman too. I do like me some 4.3 speed in the depth though.