What is troubling about Easter island is that all the trees were wiped out. This then caused the soil to collapse and it became far more difficult to produce crops.
We have 63 square miles and this suggests that the island could support sustainably around even as high as 60,000 thousand individuals. We have no evidence that it ever did, but a distant island achieved just those densities. Communication may never have taken place but i do not believe that.
i also do not buy the short life spans of societies associated with these islands. our ability to recycle a living site must not be underestimated nor the ready available use of the sea to dispose of real waste. The advent of the European Bronze age launched a global sea faring tradition that got everywhere from around 3000 BC through 2500 BC. NW Pacific Sea faring was also fully established as well and this led directly to the occupation of Hawaii if it had not happened earlier as well. Coconut culture surely led to the outrigger canoe.
Once again what is typically missing is the effect of rising sea levels on evidence. The last disturbance took place around 1159 BC and this likely flooded Doggerland in particular then through subsidence and the like. My point is that it takes little to clear out tidewater artifacts and we have only been good for a mere 3,000 years. Thus lack of earlier evidence is not proof of anything.
“There was more interaction and collaboration.”