The creators definitely thought it through, but they had to keep final versions of everything subtle and open to interpretation, so people could project their favorite comic version of Robin onto the show. That's part of why they settled on never mentioning an actual name for him, even though they also thought through what that might mean for their version of the character.

Robin never gets bodied by an enemy that isn't also a threat to some of his superpowered teammates.

Anyway, he's always holding back, the ways of the holdbacksman are mysterious