It’s all about the sponsorship IMO.
Not really - Colonial has one of the most influential sponsors for the PGAT in Schwab - outside of Fedex, Schwab has the largest commitment between Colonial, sponsoring the all season race in the senior tour, etc
This year they were trying to group more events in a row between majors and signature but it seems to not have been as well received as wanted despite the players asking for it
And they are moving Jack back to the week after Colonial
It’s too bad because honestly the 3 weeks in a row grouping and then having Canadian not one right after Colonial was the only shot we ever get to be signature with the Wells Fargo a permanent signature event right before the PGA championship