To clarify, “subject to any reasonable limits” remained in the bill after the Senate studied it, and as witnesses before the committee acknowledged, no right is absolute. That's what “subject to any reasonable limits” indicates. If you took it out, the implication might be unclear.
As for adding the additional principles, the way the provision is constructed, the list is not exhaustive as it is. Other principles could be part of what's considered in “the right to a healthy environment”. It would be elaborated on in the implementation framework and it might include some of these principles. That's something that could be discussed as we develop the implementation framework.
I would say that at least one of the principles, “substitution”, is specifically related—at least from my understanding—to chemicals management, substances management, whereas this right is applying to the whole act. I think it might be better to highlight the few key principles—as has been done—that should be covered and allow for others to be explored through the process of developing the implementation framework.