Spooks in general like to project a veneer of competence, downright invincibility. Entertainment media, journalists, experts play a big role in this. And by and large it works.

It’s especially true for spooks of a certain entity. Also, it’s easy to confuse brazenness, being protected from consequences, and usually downplayed or secret Western complicity with competence.

I'm not sure about this case, but maybe the assumption here is that these are people from a technical branch of Mossad, such as Unit 8200, which does SIGINT. I've interviewed 3 of them for your typical Big Tech SWE position, and to a candidate, they were very strong engineers. I never got to work with them, however, because they always got better counteroffers...