Yah, on a 1300 player server like Nergal, it might be possible to actually complete the trader victory. Not so much on a 30 player one. And on Nergal, the Warlord victory is 689 homeworlds, which seems a tad...excessive. Especially compared to Researchers still only needing to explode 12 stars...

Edit: Granted, Nergal is a tutorial server so you can't actually WIN, but I assume its at least indicative of actual victory conditions for that mnay players?