The 8th stage of the annual John Van Caneghem Tournament (2007).

I'm certainly not a brilliant strategist (as it turns out), but it seems to me that for the tournament stage, a map should be chosen that allows a reasonably skilled player to create several different Walkthroughs within a reasonable time, say, 20-30 hours of real time, using all possible tricks within the allowed limits... either I'm missing something fundamental, or this map is for a typical power-based scenario, requiring significant effort for optimization.

Well, as you put it: "allowing a reasonably skilled player to create several different Walkthroughs within a reasonable time, say, 20-30 hours of real time, using all possible tricks within the allowed limits..." - in principle, that's exactly what it is, because the point is that such a player immediately, even before the game, sees the very essence of the map - the most rational Walkthrough (you can call it whatever you want...), therefore, such a player will need time, approximately equal to what you wrote...
And this map is definitely worth attention...;)

A HUGE THANK YOU TO KOLBAZER AND VDV: FOR THE MAP, FOR THE OVERALL ORGANIZATIONAL LEVEL OF THE TOURNAMENT PREPARATION, AND IN GENERAL, IT'S JUST NICE TO SPEND TIME ON SUCH A "PROJECT"! Once again (to those who are still trying to improve their results), I would like to wish them to take a place closer to the stars...:)!