The reasons in the article were largely the same as ours for deciding hell no and staying in London. Apart from stepping over human excrement in the street and the pervasive stench of piss everywhere and seeing the police point guns at homeless people on the streets for basically zero-provocation, the real decision-maker was my wife telling me one day when I got back from the office how she was verbally abused and then had a glass bottle thrown at her by the homeless people near the apartment we were renting in what felt like should have been a nice and safe central neighborhood near Market Street and Union Square.
That has never happened to us anywhere in Europe (or elsewhere in the US for that matter), unless you go out of your way to find an off-the-beaten-path sketchy neighborhood, not the common central places where tourists go and stay.
We had a really nice vacation though! :)