As for the comment that Prism tanks should have been included well Einstein was removed that means no Prism towers etc
But why the chronosphere was kept in, I have no idea, that was Einsteins idea also.
The spectrum towers and mirage tanks are equivalent in concept. Just a different name.
No one mentioned that the story is childish.
If by childish you mean imaginative, then yes, I agree. But that's not what you mean, now is it?