It's possible that it is just a logical easy to build structure, but I've always wondered. There are other similarities too.

I seem to recall an attempt to cross the Atlantic with modern replicas of Egyptian style vessels but I don't recall if it was successful.

It's not sufficient to just say "this looks similar." You have to explain how the designs were transmitted, what else was or wasn't transmitted, why evidence is or isn't present in supporting records such as contemporary accounts. There is very strong presumption against pre-Columbian trans-oceanic contact (based in part of our knowledge of ancient shipbuilding techniques and maritime practices), so you need a very high burden of proof here. Vikings and Polynesians are exceptions to the rule here because we know they were both able to make the journey, there's corroborating evidence that's multifaceted, there's explanations of why the contact was ultimately transient in nature, etc.