Aw c’mon. This isn’t really research is it?
Neurotic? Cats tend to be neurotic when they do not understand how to control their inner or outer circumstances, and thus feel helpless. Because they are not very good at introspection or abstraction, that happens to them a lot. I haven’t met many cats who were neurotic about catching small rodents, birds, and reptiles. They are well adapted to rodent hunting, so there is nothing to be neurotic about.
The researchers also think that a cat is probably trying to work out how to kill the human he lives with. That seems less plausible than a thesis I am more familiar with, that if a kitten is separated from its mother at six weeks, and often handled, he tends to regard that human as “mommy.” He never really grows up, because he never needs to. He isn’t “obedient,” of course (that’s not part of the deal), but he probably has no bad feelings about the person who feeds him, cleans the litter box, and turns on the space heater.
He may, however, turn on another resident cat, whom he perceives to be getting more attention (analogous to sibling rivalry?) Hence, “jealous as a cat,” etc.