It didn't strike me as interesting or as standard either. I was more concerned about whether that would extend into the investment agreement, and it doesn't. In the investment agreement, the investors still have the right to bring claims for expropriation or indirect expropriation.
The fact that the parties wouldn't seek financial claims for regulating or not regulating in the interests of the environment doesn't really surprise me. If they thought, for instance, that the other wasn't complying with the provisions to pursue high levels of regulation, I assume they would pursue other remedies in this agreement, such as talking to each other or setting up a committee, etc.