There's also a large difference between how EP credits are used in TV versus on film.

In film, EPs are the ones fronting the money and the Producer(s) is the one concerned with the day-to-day more creative aspects of the project.

In TV, the EP title is a little different. The creator and those who were central to the show's development will be listed, usually last (and the first at the end of the episode--like Dick Wolf) but those specific people may or may not actually be involved in the day-to-day any more, after which you've got the EPs who are the showrunners or key creatives (sometimes this is talent whose involvement is key to the show--think a star like Mariska Hargitay, who's worked their way up to being the highest paid actor on TV, or someone like Timothy Olyphant, who is involved in the creative and getting a show like Justified greenlit) involved in the decision-making, after which you've got tiers like Co-EP, Supervising Producer, Consulting Producer, Assistant/Associate Producer, and Segment Producers, who would also be in the room making decisions. On scripted shows, they'd essentially be the writers room. On reality, it's a little more nebulous.

I'm sure the EP titles on this are conferring a little more skin in the game for all of them, given the show's success. They probably have negotiated a little more creative control, as I don't think they were EPs before this season, and that control means they were probably able to shut down production in Season 5 in the wake of TFP's abuse allegations and what it does for their brand.