I'm not an ER guy, but if I was, I think it would bother me that at my seniority I could hold international trips that start and end in Atlanta, but only if I was based in LAX. If I would in Atlanta I would only be able to hold domestic stuff.
When they blend the all-domestic narrow body categories between bases it is far less noticeable. The difference in QOL flying the European international flights makes it far more noticeable.
I just find it curious, not complaining as it doesn't effect me directly. I suspect this doesn't happen all of the time and is just there while they re-balance the categories to where the flying is. I couldn't imagine the company wanting to pay out that much credit when ATL already has local ER pilots to do the flying.