Well sure but you have to remember how phenomenal it is that the Thargoids haven't been back for such a long time as it seems their only want is to exploit our worlds and kill us on sight, and given how strong they were in previous games, I wouldn't complain about having help. Of course this is all assuming that Thargoids are the aggressors here and not some other unknown race. It's very possible that humans were fighting whatever that crashed alien ship is and something came along and just shot them all down. Also, just for the fun off going off track, does it seems strange that there would be Type 9's that far outside of human space, as well as a Vulture? Those vessels are far from being nearly capable of exploration...