It seems to be getting worse. Last month, I flew AMS-ATL, and the first priority bag didn't come out until 7 minutes after bags started coming out (I started timing). Only 4 priority bags came out before 11 minutes (when they started trickling out). My bag took 15 minutes to arrive, completely negating the benefit of GE (GE and priority baggage handling is touted as a great combo by Delta).
I wrote a nice note on Delta.com raising my concerns. I stated that I wasn't concerned about my bag (incidents happen), but I rather thought they should know that it was a complete breakdown in the handling of all priority bags. I also praised OKC in that email for being an airport that always seems to have priority bags come out first. I received email back stating they were sorry my bag wasn't first. I replied stating they had failed to read my email since my concern was that none of the priority bags came out promptly. I got a reply stating they were sorry my bag wasn't first AND they were sorry I had had a less than desirable experience in OKC as well.