It's definitely strange, when all the other Titan wrecks continue to have Thargoids roam them. Now, yes, none of them are in populated systems typing pause to avoid white dwarf crash and it could just be done to make it an easier experience for the newer players who may have joined into the Thargoid fray due to the Sol event... but Frontier has a tendency to give these things lore relevance in one way or another.
I also don't buy into the Pilot's Federation's idea that this was a desperate last-ditch assault on Earth/Sol. That doesn't exactly need a Titan's direct presence if they simply wanted to inflict the most amount of damage possible. I also like to point out the odd Thargoid behavior of stopping all attacks, before they were fully pushed out, which is not very characteristic of what we've witnessed. For what it's worth they remained around the systems with Titan remnants while they were still inaccessible to humans, for up to two weeks, too. Yet here? Just gone immediately.
It seems more like a purposeful retreat than their attack losing its momentum and pulling everything available back to the Titan (which they must have known was doomed to destruction the moment it set off) for the last few hours of its defense. But this also isn't exactly the most ideal thread to discuss lore matters, I think.
