I read it as within each of the mentioned domiciles there are essential different bases. ETOPS qualified & current and non ETOPS qualified positions separates the bases. Imagine if FLL had 2 bases within the domicile 1 base has all the below the red line qualified pilots (these pilots almost exclusively would fly below the red line stuff) and the other base has no one qualified for below the red line flying and fly all the other flying. Then you might have BOS and JFK that are ETOPS qualified but do mixed ETOPS and non ETOPS flying but still have to maintain currency. Different needs for different bases makes sense. My understanding is it’s pretty common among international ETOPS qualified carriers. I read no contradictions there just clear as mud.