It's aiming at a different crowd. They are trying to reel in fans of the Pat McAfee show with the DLC pack. Just like the Post Malone pack was about trying to reel in people that like Post Malone. Smart business. I'm willing to bet that these packs are leading to more sales of the full game than the ECW pack or the upcoming Global Superstars or WCW packs.
If people don't want it they won't get it. That's their prerogative. There are also people who didn't watch old stuff and thus hate the entirety of the Post Malone pack, the ECW pack (less Punk), and the upcoming WCW pack.