First, these yahoos have no credibility after repeatedly lying and covering their criminal asses, so just from it’s sources, this very neat explanation is suspect from the get go.
Second, the very framing of the situation (unknown gunmen hijackers) is itself highly loaded and designed to make the Israelis and their enablers to feel OK about an attack on an aid convoy. It is meant to convey certainty that these were nefarious Nazgûl that just had to be taken out. For all we know, they could just as well be non-hamas good Samaritan actors trying to help the aid workers navigate the ruins of the bombed out ghetto because there is a famine going on. We have no way of knowing without an independent investigation. But that’s impossible because Netanyahu’s political survival depends on a forever war.
Third, there is obviously here the narrative of the moral army, that only takes necessary action, very carefully etc. This narrative seems to only come up when non-palestinians are involved, as is the case here, because Palestinian lives simply don’t really matter to them. Again, notice how there is zero information or concern about who the dead actually were and what their motivations and behaviour actually was. They simply don’t matter: they were Palestinians.