Maybe - but if they did not include any rivets at all, then the ship hull would be boring and would not have any detail and texture at all. Besides, some might notice this, but I personally do not think it is all that important. If I were building it, I probably would think it is a nice detail even though it (could be) out of scale. JMHO.rivet details would be nearly invisible from a normal view distance.
Lots of work you can do while waiting for the details sets and aftermarket products... maybe waiting a while with the issue in China right now! Think you can finish the hull and most the first deck before any additional PE required. I am waiting for the simulated wood veneer decking mostly but if I recall from other pontos decks the fit seamlessly around everything on the decks nicelyI can't wait to get started. It's nice to get the kit early, not so nice waiting for the aftermarket sets!