This is true of almost all the big wheel companies, you cant find a spoke in stock for Roval or DT either, much less Campy or Fulcrum. My bike shops here in the ATX probably don’t have an Aero Sapim or Double butted Dt of ANY kind in stock. “We can have it by Tuesday” - “Well so can I man…at my house”.
Is what it is. I’d bet that if I swing by any big bike shop in this town other than Nelos and ask for a spoke that would fit any DT Hub/ENVE rim or equivalent, they won’t have it.