What do those 4 folks have in common?
All of them own 100+ solo issues and all have been way more active in comics the past two years.
So someone could justify those minis and probably more since Moon Knight and others live in New York.
Yet here like you said-everyone else can't. Heck we got Knight Terrors and those folks are left out.
Azrael and Duke and even Huntress could have worst nightmares than some folks. Yet some obscure character gets a mini.