Keep in mind, this is Shadow on the "True Hero" pathway.

You know as funny as this quote is out of context.

In the context of the game.
Shadow need all 7 chaos emeralds and in this scene a chaos emerald is just siting there unguarded and he can just take it.

I’m pretty sure he actually means
He’s fine with it being as easy as “taking candy from a baby.”
Not that he’s fine with taking candy from a baby.

or he could be fine with both because edge.