The issue with a catchup mechanic is that some classes have the ability to put in work orders for follower items. If Blizz put in a catch up mechanic it would completely undermine, and be a big F You! to, the players who invested in that and are still using it. The offset would have to be making that give a very decent chance at legendary follower items to be crafted vs what it is now.
Keep in mind, I'm not saying it's not kind of crap all classes can't get this perk, but for the ones that can it works against them.