So, does that mean corvids, elephants, monkeys, chimps, and humans all have a common, tool using ancestor?
Sea otters? Octopus?
How far back to get to Tool User Prime all descended from?
The use of stone tools (and bone tools) by earlier humans is associated with butchering sites, rubbish tips, post holes, burials, villages, and various other things not left behind by animals.
Do corvids, elephants, monkeys, chimps, sea otters, and octopus have megalithic architecture? Pyramids? The wheel? Even campfire sites?
Knocking stones together to produce tools, or just tool-like artifacts, doesn't work out as some kind of refutation of anything, and is just foolish.
No it means the writer doesn’t know what the find means.
It says nothing about evolution.
What it means is that archeologists who find stone pieces and interpret them as shards should not do that automatically.
The idea of the evolution of human tool using isn’t effected at all. Humans use tools and in the distant past used less complex tools.
BTW - tool using in animals has been observed for a long time. The idea that humans were the only tool users was a 19th century idea. It certainly hasn’t been taught in my lifetime.