Sensors do not detect players who are sitting in a chair, couch, or cockpit.
Sensors, when set to detect players, are unable to detect players who are sitting in any kind of chair.
This is not only annoying when building an automatic lithing system, (anytime you sit the lights go out) but also for any kind of ship boarding scenario. Enemy players can effectively shield themselves from sensors by sitting down.
That alone makes sensors useless when trying to detect players.
I therefore propose: sensors, when set to detect players, should also check for occupied seats within range.
boarding example (link): Space Engineers Sensor Bug: boarding example - YouTube