Based on Classics I, it looks like 317 points was the cutoff across 4 games to make top 24. That is about 79 points per game or and average of a top 9 result on each of 4 games.
Classics II is following a similar pattern and as of this writing is 313 points, or about 78 points per game, or a top 10 average on each of 4 games.
So yes, to qualify, the players really need to step up their efforts. That is because there are multiple independent groupings of 4 games that can be chosen.
Best of success to you guys, and thanks for keeping us posted!