It’s no secret that Respawn made the design choice of 6 vs. 6 Pilots per match within Titanfall despite the game being fully capable of supporting higher Pilot counts.
Xbox One and PC players are reporting instances whereby 7 Pilots are on a particular team or both teams in both the lobby and during a match with no negative effects. It appears the anomaly happens at complete random and only lasts for the duration of 1 match, but confirms the potential for more Pilots per match – if that ever happens.
It appears it was first reported during the Titanfall beta although was overlooked given the general nature of a beta build. Reddit users have confirmed instances are still taking place in the retail build, most likely to the delight of players in that particular match.