Everyone loves a story. Cosmologists, archaeologists, anthropologists, evolutionists--tell great stories. Some are plausible, many are entertaining, a few provoke insight.
None are scientists.
If they are not ultimately responsible for what they posit, they are only spinning tales.
Look what happens when an evolutionary notion is debunked after a better notions comes along--nobody dies from a bad reaction, no bridge falls down, no piece of shuttle garbage explodes. The notion just goes to some sort of purgatory.