Pipeline opponents are grasping at straws. 

The question is not whether money influenced the decision but whether Kinder Morgan met the conditions that the BC government set out for its approval. There will be a paper trail that should prove they did.

In my opinion what the pipeline opponents must do as a precursor is demonstrate that the approval is somehow deficient and that money influenced it. Without that causal link the only thing that might be arguable would be that money may have accelerated the approval process, which seems a lesser issue and unlikely to stop the project.