At sea, things are different from on land; if you encounter a robbery on land, at least you can abandon your vehicle and run away, but at sea, if you abandon the vehicle you have, it's a dead end.
Whether on land or at sea, the bigger the vehicle, the less agile it is. On land, a lack of agility might be a disadvantage,
but at sea, if there's a big size disparity between the two vessels, the battle is bound to be one-sided.
Larger ships can produce waves simply by approaching, which may cause smaller ships to capsize.
This is why, even if a small boat is lucky enough to acquire the corpse of an ancient creature, should this be discovered by larger ships, they don't need to attack; they can simply charge towards them, and the waves caused by their passage can easily capsize the small boats.
Thus, those ancient creatures and Bug Race corpses floating on the water are not necessarily a blessing for the smaller boats, but can also bring them a disaster.