The top 10 players in the league over all standings will win their buy-in.
When a player plays for the first time they automatically receive 410 points. When the top 75% of players qualify, that qualified players with as little as 290 points. So the player that only played 1 time and for the first time just a few weeks before the quarterly qualified.
To avoid this happening ever again the minimum points to qualify will be 2000 points. this will insure that a player has played at least 4 or 5 events before qualifying for the quarterly championship.
Also, just a side note, All players can rest assured that no one has ever or will ever play in a quarterly championship that did not qualify according to the then current qualifying requirements.