They are using statistics they have manipulated to the point where they no longer reflect reality. They needed a statistic to be high for who knows why so they make a build overpowered or send you to a particular region or activity for an event or seasonal quests. This was obvious with S6.
Now these fake statistics are driving game decisions and we can see the result. Basically they have lied so much to players and themselves they no longer know what to believe.
You have to be doing the job to be bad at it.