Sounds like a real kneejerk overreaction
I'm sorry, I still think this was an absurd statement to make. I don't give a toss what provoked the attacks, the fact that they happened means that those waters are currently unsafe and the correct thing to do is to close them to humans. I don't disagree with the thoughts that Jim clearly had running through his mind, but I do strongly disagree with what he actually said.
As regards people feeding and teasing sharks, I agree it is reprehensible but happens all the time. I never saw it in my numerous trips to that area, but I would have avoided such activity if I had known it was happening, and it is quite possible that ten years ago (when I last visited that area) the custom hadn't yet developed.
Here in Belize most of the large pelagics have been caught and eaten, or just killed "for sport", so a shark sighting is rare (other than of nurse sharks, which are still quite plentiful in a number of areas). Yet in places where "real" sharks still exist, such as the Blue Hole, it is common for dive crew to "chum" the water after divers have exited - and sometimes before they have exited. I was coming up from a technical teaching dive a while ago and saw a feeding frenzy above us, because another dive boat was chumming the water. I had no desire to try to surface through that, so we swam away and surfaced 100ft away. Caused a long and tiresome surface swim, which we didn't commence until the feeding had stopped and (presumably) the sharks had dissipated. Yet even that wasn't safe - these idiots chum for sharks exactly where the boats moor, and given the local topography there is nowhere else for the boats to stop. Divers HAVE to come up through those waters, the very ones that sharks are becoming accustomed to being fed in.
I'd be interested to revisit the Sharm area after all these years, to see just how much it has degraded. I first dived off the beach at Na'ama Bay (now the main part of Sharm, but then separate from the town) back in the mid-80s, and in those days the diving there was superb. It steadily degraded with diver pressure, until 10 or so years ago I decided enough was enough. I gather that Dahab has largely gone the same way - I haven't been there in almost a decade. I remember my first "technical" dive there, through the arch in the Blue Hole. A long time ago now.
But, and this is a key point, this area is now extremely popular with beginner and inexperienced divers. It is incumbent on dive professionals to create a safe environment for them, and not to do things that are likely to make the water dangerous. Shark feeding, which I agree is almost certainly at the root of the recent tragedy, is something that no dive professional should ever engage in.