User blog:VGKing1/Why doesn't Dr. Zomboss send out certain zombies in PvZ2

So I was wondering why Zr. Zomboss doesn't summon certain zombies from his zombots. Some of these the reasons I thought I got from reading the trivia. Here is what I think:

ANCIENT EGYPT:

Flag Mummy Zombie: No huge waves of zombies in boss battles

Ra Zombie: No sun to steal in boss battles

Camel Zombies: The boss battle would be to hard to beat and there would probably be no proper way for the Zombot to send it out into the lawn

PIRATE SEAS:

Pirate Zombie: I don't know, maybe to make the boss battle a little different?

Flag Pirate Zombie: No huge waves of zombies in boss battles

Swashbuckler Zombie: There would probably be no proper way for the Zombot to send it out into the lawn

Seagull Zombie: If it was in the battle, the boss battle would be too hard to beat

Imp Cannon: Plank walker already has an imp cannon, and there would probably be no proper way for the Zombot to send it out into the lawn

WILD WEST:

Flag Cowboy Zombie: No huge waves of zombies in boss battles

Zombie Bull: Probably a reference to the almanac

FAR FUTURE:

Future Flag Zombie: No huge waves of zombies in boss battles

Robo-Cone Zombie: If it was in the battle, the boss battle would be too hard to beat

Disco-tron 3000: If it was in the battle, the boss battle would be too hard to beat

Disco Jetpack Zombie: If it was in the battle, the boss battle would be too hard to beat

DARK AGES:

Peasant Flag Zombie: No huge waves of zombies in boss battles

Zombie King: There would probably be no proper way for the Zombot to send it out into the lawn

What do you guys think? Should I make a thread about this should should you post what you think in the comments?