To be honest, boiled Crawfish as a stand alone delicacy originated in Acadiana.
My dad who is from upper Bayou Blue between Houma and Thibodaux said they used to (in the 1930s) go and catch crawfish but then would put it in their other meals not just boiled.
He never ate boiled crawfish until he moved to Vermilion Parish in the late 1950s.
I grew up, with Richard's on South Henry in Abbeville as one of the first pure stand alone Crawfish joints even in Acadiana.
Before that everyone here did it at home.
What made Acadiana so perfect was being right on the edge of the Atchafalaya Basin and Rice farmers everywhere.
The rest of Louisiana is riding on our Crawfish tails.