Yes, there should, and there is. That's already part of the law. That's where the duty to consult and accommodate arose.
So there definitely ought to be and there definitely is. Now, whether or not that's recognized and reflected through the environmental assessment process is one question. I'm not sure that it is.
How to navigate it is quite another question, particularly when it is related to claims territories and to resources that are in dispute. For instance, if there's a particular project that may contaminate either groundwater or surface water, which in turn hold fisheries that first nations are relying on for food and for social ceremonial fisheries, destruction of that fishery could actually lead to the destruction of the culture.
If the situation is that extreme, then I suggest that's precisely the reason consent is required.