Correct, Boskonay....
The Hamburg thing looks amazing. And while we all have our opinions on this (above) actual layout, and the concept of "cheque book modelling", I would be the greatest believer in "each to their own". Anyone here who knows me would be aware that I find accuracy in the appearance of model locos and rolling stock to be the most important thing, but others would differ. I know of at least two modellers for whom accuracy of track layout in a model of a specific location is paramount. Others go for an overall "look", or none at all.
At the end if the day, it's our layout, and if we want to run a set of hopelessly inaccurately painted De Dietrichs round a model of a German station, hauled by an out-of-scale Donegal 2.6.4T painted in GNR blue, and with a NCC "brown van" attached to the back along with a fertiliser bogie in lined LMS livery, nobody can tell us not to!
So, again, hats off to the creator of this huge behemoth of a layout. He has put his heart and soul into something he enjoys, and wants to share it. All of that is good - very good - and if it attracts just one five year old to the hobby, he's done us all a service.
It's just not MY thing at all...!