Skytowers are also our SOP so it doesn't advantage him much. Unless you can cite specific advanced senses he has I don't think that concern matters much for decision-making.I don't expect him to be sitting in the exact location he gave us, I'd expect him or a SC observing from a SCSA skytower a mile up. I don't think we can get within our SC range within being spotted, especially given Hazou's stealth. And that's ignoring whatever advanced sensory bullshit Orochimaru has.