"Sitting around and waiting for a spring graduation, after you've met all the requirements a semester early" is something that should not nearly as easy as it is. That it is is a sign that high school requirements are too low.
Intent is not part of the rule.
You are missing it. The rule is not "leading with the head", it's "hitting at or above the shoulder." Roby's hit was too high- he should have aimed for the solar plexus.
The helmets absolutely made contact.
Because it was against the rules. A photograph is not appropriate evidence here- all it will do is show what is happening at an exact snapshot in time.
http://imgur.com/6VDw5XZ Shows the hit- this is clearly a targeting penalty and an ejection according to the rule.
Debate the rule all you like, but this was a correct and proper application of the rule as it is in place now.
My favorite game in this vein is the 2002 San Jose State game....I woke up very early, worked parking until about 5 minutes before kick-off, made my way into the stadium, and with three of my best friends from high school, watched OSU dominate the Spartans.
That game featured OSU allowing 0 rushing yards on 13 carries and forcing and recovering fumbles on 4 consecutive drives, winning 50-7 and pushing the Buckeyes to 7-0. It was so much of a beat down that I got to see one of my former HS teammates, a walk-on named Steve Moore, get some time in the defensive backfield. Just a great day.