that sounds like the event wasnt the source but a catalyzer. Imho the real reason was a large base of 59er who all wanted to lvl, and the grinding grounds for that lv couldnt take them at all.
So what happened was a fight over the ground u were grinding on. Of course before the cap lift, people just grinded until 59 was reached without any problem, because it happened over time.
So if u want to blame Outspark for something then for lifting the cap much too late.
Thats the reason i stay on 71, and do not try to cap.
When the cap gets lifted i can peacefully grind my way up.