It actually caught my attention because the showcased Chinese playthroughs of it exceed a 20-month gameplay duration. The map author is Woxin, by the way. The author of "Brave without Fear" is ljmvbc. This map is designed with the principle of ultra-dynamism in mind, and the playthrough will be accompanied by an endless wave of computer-controlled enemies in all zones.
I glanced at a Chinese playthrough lasting 22 months, and the contrast between the battles in the first few months and after 12+ months was shocking. The enemies have some gigantic stacks, something similar to what I've only seen in conquest hell and heaven ult.ed. That's where 170k demons would be useful (I myself added 150k on that map). The map is interesting, but I'm even afraid to start, although I don't think it's very difficult, because there isn't a super-fast pace at the beginning.