No offense to you players in chapter 8 and above, but the damage done is to players items from chapter 4 thru 7 and its great if you are past it.
(bolding is mine)
I'm in Chapter 9, and I don't necessarily disagree with you overall, but...
I think we all tend to get caught up in where we are right now and how these things impact us. Orc level event buildings were already less powerful than any other chapter, and the nerf is hitting them hard as well. As an example:
I don't see how it's great for the players in chapter 11 who won 10 Winter Stars early in Orcs and are now losing 4300 population.*
*yes, I get it's a bit out there to keep those buildings after reaching the need for mana
and seeds, but that would be a bunch of extra residences needed if they
kept the Stars after the nerf. Getting rid of them now would mean they'd have to replace 12,300 population. A player at that same level now, but who won them at the end of Fairies, the nerf would remove 3300 pop and selling them off would remove 10,000. That seems like a big difference.
I don't have any buildings that are impacted by this other than some unicorns that I only keep because I like them; one is a chapter 2. Maybe that makes it easier for me to see the impact this change will have regardless of where players are in the game now.