I am sure their families will be thrilled Trump envoy Ric Grenell secures release of American hostages in Venezuela · American Wire News
While the release of the hostages is definitely good news it wouldn't surprise me if the release wasn't in exchange for some type of quid pro quo possibly the lifting of some or all of the sanctions against the Maduro regime.
Other administrations have done similar things to get hostages home. It does show that Americans value the lives of fellow citizens. Iran prisoner swap: US citizens freed in $6bn deal
This is probably worth mentioning as well: “And very important to note, that Venezuela has agreed to receive, back into their Country, all Venezuela illegal aliens who were encamped in the U.S., including gang members of Tren de Aragua. Venezuela has further agreed to supply the transportation back,” he wrote. “We are in the process of removing record numbers of illegal aliens from all Countries, and all Countries have agreed to accept these illegal aliens back.” https://apnews.com/article/trump-maduro-envoy-migrants-grenell-edfa58920c0a76f0bbe9de995a07d1a3
Edit I have no problem with the decision if it turns out to be accurate although I would add that if Biden did the same you and the other Trumpers would be bashing him for kowtowing to Maduro the Commie.
I would also add that Venezuela has a serious labor shortage. Accepting immigrants returned to the country is actually a sound economic decision for Maduro. Also keep in mind that most of the migrants returned to Venezuela will not be criminals but Venezuelans who emigrated to the US for political or economic reasons. Trump just decided to withdraw Temporary Protected Status from 350,000 Venezuelans in effect changing their status from legal to deportable. Maduro will gladly welcome them back. Trump Administration Revokes Protections for Venezuelans in the U.S.