#1 The rematches

Right after the Super ShowDown event, a few matches for WWE’s next pay-per-view Stomping Grounds have been revealed. After Ziggler’s match with Kofi, Ziggler expressed to Byron Saxton backstage that he wants Kingston inside a steel cage.
Looking at the matches, one wonders whether Super ShowDown was just the grounds for laying and testing out some matches before Stomping Grounds?
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We will witness the same challengers take on the top champions of the company at the event, as Dolph Ziggler will meet Kofi Kingston inside a Steel Cage and Rollins will square off against Baron Corbin again.
Another question these bookings raise is what gives the challenger a reason to challenge for the championships once again after losing cleanly in their first tries?
Since WWE has done away with rematch clause for those who lose their championships, then why are the men who aren’t even holding a title and losing in their efforts of winning one getting rematches?