[joe_the_user]

It seems fairly simple.

Extraordinary claims are often made and publicized widely today just because they get attention, grab eye-balls and so-forth.

Most of these ordinary claims are at least unproven if not wholly fallacious for similar reasons.

This is why "extraordinary claims require extraordinary evidence". Once a claim has made that rounds and gotten some pretty thorough debunking, it's reasonable to say that it's water under the bridge and move to the next claim.