In Russia people "fall out the window" all the time. It is intentional. We need to adjust.

Unmarked vans drive around all of the time and nobody bats an eye at them. There is no reason to even bother with a big elaborate company name that anyone could google and do further background checks on

Unmarked vans drive around all the time. They don't typically park out front of a whistleblower's house. There is more scrutiny there than driving down any random street. Therefore, a more sufficient cover would be required.

An unmarked white van (without windows) parked a house or two down the street hacking your wifi might not be that noticeable. One across the street with a radio dish spinning around and a parabolic mic sticking out the window and a few people entering and exiting it with donuts and coffee multiple times probably would be.

An unmarked van could park in front of any arbitrary public neighborhood house with street parking for a few hours and nobody would care. As long as people aren’t visible in it.

Multiple days would be suspicious but that would be true of even the “sewer inspection” cover van

I mean, the real argument here is between "something interesting" and "something boring", and it's message board so "boring" is heavily disfavored. But, yeah, it's a sewer inspection van.

My comment did not express any opinion as to whether this was or was not a surveillance van, and this has no bearing on the proposed alternatives being a false dichotomy.

With GP's clarification, it's still shaped like a false dichotomy but I don't think it's one in spirit. It sounds more like reductio ad absurdum to me, with a sprinkling of hyperbole for effect.

Legacy of Ashes is a great book about the CIA on this, on how they basically stumbled into some of their biggest accomplishments.