LOL
You can even add all the possible IPs to the list, then they will have all the same priority, and just during a DoS attack
Do you know that will happen when a dev will add other IP to this list? Someone will see it because ... it's an open source project!
Do you check every day what devs add to the Bitcoin Core?
Again, it isn't a black list, it is a "low priority list", that enable it self only IF there is a DoS attack.
So, because of this, it's better to put all the Bitcoin network in a trash can a let the market go somewhere else
If you don't like this list, fork it, it is just a click on the github repository.
You think not, then, better for yourself.