Because Battlefield 4 -- a game released five months ago -- is still having issues, the newest bit of DLC was delayed on both Xbox One and PC. After two days the Xbox One version is now good to go this morning, but the PC version is still delayed indefinitely. Despite the delay, Premium Members will still get their "two week exclusivity," which forces non-members to wait even longer for the DLC.
At this point the entire Premium program is kind of a mess, and EA should offer affected platforms free memberships to compensate. Simply put, Activision does their Season Pass right for Call of Duty. Despite the fact that you could still argue that $50 for map packs is highly overpriced, EA has put far too many complications into their Battlefield Premium pass, alienating fans in the process.
I have more than enough patience for launch week issues, but to have so many unsolved problems this far down the line is a problem.