2019 US Open is at Pebble Beach. 2020 at Winged Foot, which is a private course, so not getting that course on WGT for 2 years from now.
Boredom was a factor in continuing to play WGT beyond 3 years, by the old standard of the game being very challenging. The easier new standard, I'd say brings boredom on sooner. A brand new player can rocket to becoming a Legend, in under a full year of playing now.
I don't see a Selected Set of bad golf clubs, and putting on a insane fast, not a practiced on green speed, as regenerating interest. Or other things renewing interest in the product.
Getting a new golf course was the big thing to look forward to, while waiting with big hopes for more fun on that new course. I'd start looking forward to a new course around October of the year before we get the new course around June. That's gone now.
"Say it ain't so, Joe".