I just looked up Poblano vs Pasilla and at the top of the google list was an entry from that “Dogfood” site. Mistakenly I clicked on it and read that white grocers call Poblano peppers Pasilla.
Well I go to a Hispanic supermarket, the clientele of which is about 95% Mexican and Mexican American. You know, beautiful inexpensive vegetables, real butchers, a juice and fruit bar, a tortilla factory, and restaurant in the store.
They call their fresh Poblano peppers Pasilla.