My best guess is that they’re trying to create a proper system that’d allow for blocking whilst still allowing access to new users.
You need to consider scenarios when people pass down devices to others, especially in this time of RAMageddon where the prices of electronics are rising up and up.
If you say “ban this device permanently, no exceptions”, that is very, very selfish.
What if the person goes ahead and passes it down to a child, only to have the child unable to play your game (or appeal, in that matter), because of someone else?
You don’t expect the child (who could be 7, for example) to have a Discord account, now, would you?
Or, a device is banned but someone sells it, say, a year or two into the future? Again, that new player would inherit the ban unsuspectingly. Why should the customer have to go through all the hassle of unbanning themselves for something an entirely other person has done?
Yes, it cuts down on malicious users repeatedly using the same device, but in the end, there are more downsides than upsides.
In fact, when I upgrade my own devices, I don’t recycle them or trade them in. Instead, I pass down my devices to others so they can use it.
My younger siblings obviously don’t need Centre Stage or MagSafe, and as such, there is really no harm in passing a device down.
My main point here, is that we need to think of others that could be affected on the side. The Collateral.
(And no, not everyone is willing to, or can afford, to purchase a new device.)
…and that’s why we’re probably still waiting for the feature!