However, I do notice the pronounced gaps between the toes. My parents generation grew up in Melanesia starting around the 1950’s and many of them have commented on the distinctly different footprint profiles of the local people who never had worn shoes and the western newcomers. If you’ve never worn shoes your toes are far more splayed. I don’t know about lenght of toe.
So really I don’t think your observation is related to their genetic proximity and more to do with bodily adaptation. Perhaps an anthropological podiatrist can comment.
For context, how old are the oldest Egyptian pyramids?
Evolution can happen rapidly sometimes. Lookup "island rule" or "Foster's rule", which is also about this. Changing environmental conditions can rapidly increase evolution rates, specifically for "size" attribute.
There are many known genetic conditions that we see even in modern times, caused by one or two mutations which can cause very long fingers/toes, and people in this thread are arguing that even in 23000 years nature can't land on that mutation and stick to it, _especially_ when we _know_ the DNA for it is likely still there because we're all apes 98% identical to monkeys for example, which have the long toe thing.
After 7 years of remote work and living in a warm climate where I rarely wear shoes, I can confirm that my own toes have splayed out.
Just looking at this article Aborigines had been in Australia for 20k - 30k years before the White Sands footprints were made. I'm sure there's footprints of similar "vintage" there. It would be curious to compare them.
[0] - https://theworld.org/stories/2016/08/01/lock-hair-dates-abor...
For example: Women's feet have gotten considerably larger over the past several decades. For example, in the 1960s, the average size was around a 6.5, in the 1970s it was 7.5, and today it's often cited as between 8.5 and 9. That's a whopping 30% (according to Gemini) increase in them whoppers, in my lifetime alone.
I think it's well know also that when there's a certain type of environmental condition that puts different stressors on something evolution can happen only in a few generations. Look it up. There's countless examples of rapid evolution that's well known to happen.
"Evolutionary Scale" time ranges is normally what we associate with the ability to evolve entirely new body morphologies. However, for simple changes in length of existing structures often only several generations is required (a few decades).
Have you tried asking these programs to provide some sources and reading those instead?