I think you all are reacting to this way out of proportion lol.
Chances are, Shanks vs Kid probably only started and the providers are hyping this up by "utter annihilation" after seeing Shanks flex his haki or something.
Chill for a while lol, at least until spoilers fully come out.
I for one, don't believe for a moment that Oda will actually write Shanks one shotting Kid. At the bare minimum, some important context is missing even if that happened