I have read that, too.
However, that means that humans were the draft animals for roughly 200,000 years.
No one figured out that one worker could transport ten times as much wood or stone, or migrate all his tools and household goods to a new territory, with a pulled wagon?
That sounds really strange.
Maybe not as strange as you think.
If you cast off the notion that these semi-stone age American societies were peaceful. Why worry about ease of transport when you can raid the next village for two-legged “beasts of burden”.