Hasbro's American. They're from a country that has people who sue for everything even if they're not in the right ("Microsoft cancelled my Xbox Live account because they said I violated their TOS, they can't do that!"). If some kid gets a Beyblade to the eye, and gets hurt, in court I wouldn't be surprised if someone argued that the cardboard could've been mistaken as packaging, and could have been easily thrown out.
What they could have done is bump up the age ratings for Takara stadiums while still creating their own for the younger audience.
What they could have done is bump up the age ratings for Takara stadiums while still creating their own for the younger audience.