Dribbled ball...should be a safety, would be a single if it went out directly from the kick, since Edmonton punched it out of touch it's a safety. Could have been a huge turning point handing Edmonton the ball and some field position on a botched call. The key words below are "directed" and "possessed." If Edmonton recovered the ball and killed the play it's a single. Directing it out of touch makes it a safety.
Article 3 — Safety Touch
A safety touch is scored when the ball becomes dead in the possession of a team in its own Goal Area, or touches or crosses the Dead Line or a Sideline in Goal as a result of the ball having been carried, kicked, fumbled or otherwise directed from the Field of Play into the Goal Area by the team scored against, or as a direct result of a kick from scrimmage having been blocked in the Field of Play or Goal Area.
After a safety touch, the options to the scoring team are to:
Scrimmage at their own 35-yard line,
kickoff from their own 35-yard line or,
Accept a kickoff from the 25-yard line of the team who conceded the safety touch.
If while in the act of conceding a safety touch, a team deliberately, in the judgment of the official, commits a Holding infraction, the score shall count and the penalty applied at the point where the ball is next put into play.
When a Rough Play or Unnecessary Roughness foul is committed on a play during which a safety touch is scored by the non-offending team, the score shall be allowed and the penalty assessed from the point where the ball is next put in play.
Article 4 — Single Point Or Rouge
If the ball is kicked into the Goal Area by an opponent, a rouge is scored:
when the ball becomes dead in possession of a team in its own Goal Area or,
when the ball touches or crosses the Dead Line or a Sideline in Goal, and touches the ground, a player or some object beyond these lines.