About changes and/or combining Hero Specializations.

Are these definitely verified conclusions? Because when I was testing and adding the third tier of creatures, I thought that the special ability for creatures was hardcoded to specific creature IDs. But when I started adding them, it turned out that the special ability also works for new creatures, if they belong to the same faction and the same Tier. For example, the Razak buffs golden golems with his bonuses; these are new IDs, but they belong to the Academy and are also on Tier 3.