Actually, it's not +12 to morale, but +2 to all friendly heroes.
It's even funny that many defend their favorite city, and this prevents them from giving the correct answer.
It's just that the habit from WoG has become a standard.
I gave +12 to the city garrison's morale.
And in a regular game, only +2 to all friends.
Как-то у Вольтера спросили:
где бы он хотел быть после смерти - в раю или в аду?
Он ответил:
"В раю климат лучше, но в аду компания настолько приятнее!".