It was my impression that Bungie made a joking reply to this timeline problem about Leela being busted. Frankly I think that a super-intelligent species like the S'pht would not be fooled into thinking that the Marathon came from somewhere 92 light years away based on Leela's message. After all, wouldn't the ship have records of the flight? Or spectrum information on the star Sol that would give away its true location? The cold fact is that, if I were a Pfhor commander watching a miserable band of apes colonizing a planet orbiting a G8Vp star, I'd look straight to Sol. Why?
Imagine that you are a Pfhor intelligence analyst. Sending a STL ship like the U.E.S.C. Marathon to another star system takes hundreds of years, so you can't send probes ahead of time to check for good planets. (That would more than DOUBLE the already vast amount of time required to colonize, since the probe would have to go to the system on its own and send back the message, which would take an extra few years to trasmit.) What this means is that you can't take chances with potentially lousy star systems; you have to pick the best. Tau Ceti is very much like Sol, which means that in our stellar neighborhood, it's by far the best choice for colonizing if you're taking a "shot in the dark" by sending a ship before exploring the system remotely. Let's face it, if we came from an O class star system, we wouldn't be farting around in G class systems with insanely expensive STL colonization projects. So, as a Pfhor intelligence analyst, you can trace the humans back to Sol from Tau Ceti by seeing that if the humans chose to gamble trillions of dollars and decades worth of labor on Tau Ceti, it must be very similar to the home system, which naturally leads to Sol, since Tau Ceti and Sol are VERY much alike. Furthermore, an intelligence analyst might comment on the fact that 92 light years is a stupidly lengthy distance to travel at reasonably plausable STL speeds; it would take MILLENIA. Any competent military fleet would have teams of these intelligence analysts (probably all geniuses, I might add) obsessing over details like this for hours...Leela would have to create a pretty elaborate hoax to fool them.
Just my opinion...
