=Lizard=
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The wolf unbinding was removed to strengthen Stronghold in the times when guilds and zephyrs didn't exist yet. With their appearance, the need for this disappeared, as Stronghold became too strong. The developers don't aim to completely overturn the balance of factions, but only to adjust it slightly.
The strategy for playing as Tyras has changed in that the wolves are upgraded on the 2nd day, not the 1st. That is, a half-day tempo is lost on average.
This isn't a "half-day tempo," but IMHO, a total change in strategy. In my opinion, Stronghold has become stronger because it's now possible to include both Mish and Cyclops on the first day (this is especially relevant for Jebus and Diamond). With the requirement to upgrade goblins, you'll have to make a strict choice – either Mish or Cyclops. I personally don't like this.