That article is so misleading. The first person found was a missing person near Joshua Tree NP, Ms. Cho, who had run off during a dispute with her boyfriend and was eventually found dead in the Mojave Desert.
The second person was a father from TX, reported missing south of Grand Teton NP - and he had his own separate search mission, no one associated with Gabby's search found him. He was a suicide.
The third person was in a Walmart parking lot in Alabama (but reported missing by his family). The fourth was a missing woman in Colorado. The fifth were unidentified remains found in South Carolina.
The six and seventh are, apparently, Gabby and Brian.
Missing persons are found all the time. There is no indication that any of these missing people were found by people who were looking for Gabby or Brian. None of them were found in Spread Creek or in the Carlton Preserve area. It's clickbait, IMO. Although it is interesting, always, which cases capture the public imagination (in this case, worldwide). The search for Ms Cho was ongoing and completely separate from the search for Gabby or Brian - same with Mr. Lowery.
The article also includes Kylen and Crystal (who have their own thread here). There was never a missing persons case filed for them, as they were found dead by a friend who spent many hours looking for them - and found them.