Yeah, well... Apple stated otherwise... take it up with them, if you'd like to ague the point.
I cannot tell if you're being intentionally obtuse or if the tone of your comment is simply a consequence of your wording, but I will reply with, yes, this is pretty obvious... you are either completely missing or intentionally ignoring the point, that I have tested with both my new iPhone 7 and my old iPhone 6 sitting right next to each other in these environments, and the iPhone 6
consistently works, albeit a little slower, and my iPhone 7
fairly consistently does not in highly congested areas.
I am not sure why you continue to pursue arguing over this? I am simply expressing my experience... apologies if if conflicts with your hopes and expectations? Please know that I have no grudge against Apple (but for maybe a bit of disappointment that my nice, new, shiny, should be the best iPhone I've owned, new toy, don't work as expected), as I am simply reverting back to the "last known good" option. My whole family has iPhones, I am on my second macbook in 5 years, been through countless iPods, iPads, iPhones, etc., etc., and this is the first time I have ever posted negative marks against an iPhone.
If you'd like to perform your own tests and post results, by all means, please do. But please stop your attempt to rebut my experience when you have no basis for such...