Indeed, Landyn Torres managed to trap Yusuf Zuck, because not only Yusuf Zuck and Ayden Acme, but everything shattered on the island was swallowed by the space black hole caused by the explosion.
Fortunately, Landyn Torres himself probably knew that this couldn't kill Yusuf Zuck. Though Yusuf Zuck and Ayden Acme weren't dead, they had suffered both internal and external injuries... just injuries.
The two were in a state of extreme embarrassment, their clothes were torn, their faces smudged, shoes lost, Ayden Acme's hair was disheveled, and it made them stand in the void swearing non-stop.
Yusuf Zuck felt frustrated and angry, Landyn Torres was his nemesis and he wasn't fair in playing tricks.
Even though he was very cautious, he still got caught in the end, creating a sense of powerlessness and fear. Landyn Torres might not be as good as him in cultivation level now, but in terms of trickery, he was a hundred times better than himself.
