Which reminds me of the article on HN a few months/years back about how you could identify most spies because they all appeared the same way in embassy listings (which was all public information).
With a lot of things like this, you're really squatting at a particular point in the effort-reward curve. You're not going to make something of this scale absolutely secret; there are hundreds of people involved, deliveries of material over years, and ongoing services. It's not like Amazon can bury the workers on site after they finish their work, like people always claim the pharaohs of old did but probably didn't.
But being a little secret might solve some problems, so if there are low-effort ways to make it a little secret, you go ahead and do those. You make a shell company, even if it has a stupid name. You don't tell contractors or delivery people who the real owner is. You don't drive up to the building in a car that says "AMAZON1" on the license plate.
It's not going to keep the place totally secret, but if it makes a few things easier - you get fewer break-ins, you have fewer troubles with the local planning boards, whatever - it's probably worth the tiny bit of effort.
(Also, did you know that Dick Van Dyke is still alive and active? He's in the new Mary Poppins.)
