Yes I'm the one who made the detailed map, but since there were no function-handy PS1 emulator at that time that I could handle removing the foreground /background scenery with no issues, thus lead to a lot of background scenery being left in the detailed map.
In during the years 2015-2016 I once considered making a revised one but then I changed my idea and didn't think it really necessary. And there're other (my) personal projects I'd like to be involved Instead of this.