There was something nagging me about this mission, and I now realize this is it. The Mumbai and Miami missions offer so much more flexibility by comparison.
I get why the P-Power story doesn’t have a fallback, since the benefit is you gaining access to a highly restricted area, not drawing a target out into the open. And maybe the same can be said about the sub engineer and hippie. But the Shaman story and bringing Martinez to the Construction site is something that should be doable without doing it yourself.