Very strange. My special event and settlement buildings all get aid. Why would Pirate's Hideout be unable to get the aid?
Buildings have different typings to them which govern how you'd expect them to work.
However there's only the building types you see in the Building Menu + Random Producing + Tower. Because they haven't been adding new typings (you'll notice we have Sets and Chains but the buildings within those are not classified as Set or Chain, they're residential, decoration, cultural etc)
Because they're not adding new types you're going to see "hybrids". Buildings that are classified as one thing but will share characteristics of other types
- Traditionally a Residential building provides Population and Coins, and can be motivated
- A "Random Producing" building would traditionally appear as "All Ages" in inventory (automatically ages up), be plunderproof and be unaidable. Originally this was likely just Wishing Wells and Victory Towers but was later added to Set building pieces like the Mask Vendor, buildings that don't actually have random production but carry all the other characteristics
If you look at Crow's Nest and Druid's Temple both buildings are classified as Residential because they give Population -BUT- share all of the charateristics of a Random Producing building (they even produce randomly).
Pirate's Hideout is producing randomly so you'd expect the possibility of it behaving as a Random Producing building. But it's not a auto age up building. Because it requires a 1-Up/Reno kit and provides Population it's classified as Residential