I'll say this much for Ghost Shark
At least it's not quite the same repetitive movie a lot of Syfy shark films are, such as Swamp Shark, 2-Headed Shark Attack, Atomic Shark/Saltwater, or Mississippi River Sharks. Some of those films have their moments, but it's much the same stuff again and again.
As idiotic as this plot is, at least it's sort of entertaining. Reminds me a bit of Nightmare Shark (2018), another Syfy film, though these isn't quite as enjoyable. Still, somewhat entertaining, and while below average, I didn't hate seeing this.