Adding it isn’t a bad luck protection system because there’s no such thing as bad luck when it comes to world epics simply because the chances of one dropping is that low.
Getting heads 6 times in a row when wanting tails is bad luck
Getting less than 5 on a 10 sided dice when you need a 6 or higher 10 times is bad luck
Needing to kill a mob 50 times for a 10% chance of the item is bad luck.
What you’re asking for is bad luck protection on an item that has a ~1 in 50,000 chance of dropping a 0.002% drop chance. The chances are so low that you’re lucky when it drops and it’d be normal that it didn’t.
Every raid mount drop has higher drop than SSS (or any world drop). They have about 0.1%.
The difference is that you can only do them ONCE a week. You can farm open world mobs or dungeons as much as you want, or more like limited to hourly lockout limit