Any time there's a subjective provision in legislation, that is problematic, because it is interpreted to be the intent of the legislation to permit someone to make a subjective determination.
In this case, it's particularly concerning because of the exemption for uncertainty. That means that if there is uncertainty as to whether or not there even is a health risk, someone could still make a decision that would have very sweeping powers, such as, in fact, a decision to control or remove a product from the market when that product has already gone through the proper regulatory approval process that is already provided for in the regulations.