The progen studding was something that I really enjoyed from Beta--for both lore and practical reasons. This actually factored into my plans for how I built them, and also those of friends I play with. The idea of being able to share lineages of those important wolves from allied dens was a big appeal, and to learn that this was rolled back in silence was very frustrating! I do not think the potential drawbacks outweigh the fun of this feature, and I would love to see it reinstated.