Quote Originally Posted by Alahra View Post
It comes from data that the developers track regarding quest completion rates. They track similar data for things like raid clears and primal clears, which is how they also determined that too few people were clearing Alexander (Savage) or that less than 50% of the playerbase cleared Titan (Extreme) back when it was current content.
I feel like Yoshi also said that T5 weapons were getting buffed because so many people were getting relics easily.