https://nyheder.tv2.dk/samfund/2020-04-26-hvor-taet-er-folk-...
https://nyheder.tv2.dk/samfund/2020-04-26-hvor-taet-er-folk-...
This was being pointed out by articles like the one you linked to, but that doesn't negate original offense. Far fewer people were reading articles like this than were seing toxic scare-mongering photos on the front pages of major national newspapers.
1. It may reduce societal pressure to isolate by making it seem only a minority of people are actually doing it (much like the broken windows theory)
2. It fuels distrust in media outlets. Deservingly so, even if machiavellianly this choice seems to serve the greater good.
edit: when that standing next to each other is attempting to introduce a narrative that people are doing something contrary to what they're actually doing
(This would still happen if the photographer kept the wide-angle lens, but then a lot more of the surroundings would have been included in the frame, making it obvious that the persons were far away. Whether tele/wide-angle "affects perspective" is a favourite topic of endless debate on photo-related Internet forums. The answer hinges on which parameters you maintain constant, and which ones you allow to vary.)