Been personally against fantasy tracks in the past. Now that I think of it it has been bit silly from me.

Actually there are many benefits when designing/creating fantasy track, especially on a "non-racing environment" like this project, because everything can be tested/changed to fit racing needs which is of course very difficult with real environment - at least on this kind of racing track on regular roads type.
I'm pretty confident too that you won't be having fantasy track feeling when driving on this location. As everyone can see from feels3's previous tracks he's extremely talented on creating believable real-world objects and textures. On top of that I also feel he's very good on visioning/designing/creating larger environment as can already be seen from screenshots.
Indeed very good project for him to test various things, make use of his artistic mind and at the same time improve his skills.