It seems that when redoing the detail files (fixing the grouping of entries), the overall files have been forgotten. So all AH-Data-2015-??-??.csv files prior to 2015-05-26 still have the grouping.
Are there any plans to bring EAs and stardust to the AH-files?
By the way: there are some name mismatches between mercenaries in the AH files and the game client:
"Brosi Buk" (in files) - "Brosi-Buk" (client)
"Ashahsa Windborne Acolyte" (in files) - "Ashahsa" (client)
"Puck Dream Bringer" (in files) - "Puck, the Dreambringer" (client)
"Rakashani The Spiteblade" (in files) - "Rakshani the Spiteblade" (client)