It falls short for me, also. A misuse of the term "playoff" really.
Here's a release from the DGPT on how this works...
DGPT Announces Update To 2022 Playoff Events & Tour Championship Qualification Procedures
August 31st, 2022: The first ever DGPT playoff events are just around the corner. As announced earlier in the year, Discraft's Green Mountain Championship (GMC) and the MVP Open at Maple Hill (MVP) will serve as the first events in the inaugural DGPT postseason. These playoff events will be weighted more than Elite Series tournaments with 125 points being awarded to the winner vs the 100 points awarded at a standard Elite Series DGPT event. With more points on the line, these events will decide the final seeding going into the Tour Championship in October.