I create the specifications to create a fun and fair challenge. By dictating the map, mods and target condition, you can create a wide variety of challenges testing a variety of skills. In my challenge, it tests streaming control at low and varying bpm. This would not be possible without stipulating that it has to be played in a certain way. By specifying the map and mods you can create maps where the challenge is accuracy, AR10 reading, alternating skills, speed, aim, et cetera. Certain skills should not be off limits to testing just because they cannot be created without stipulating a map has to be played in a certain way.
Low bpm streaming and finger control is a skill, not a playstyle.
How do you expect most people here to acc though 173 stream jumps, on other words 366 bpm jumps? Of course you might not think that's hard, you have 8k pp. But you're not the exactly the target demographic for this event. The challenge I have created is accessible and doable for lots of people while still being a unique challenge. Yours in inaccessible for a large majority of people expert for the top percentile in performance. Don't complain about my pick when in practical terms mine is much more appropriate.
It does not matter how the challenge is created, so long as it is a good challenge. If we started trying to influence the maps that were picked by creating rules how the challenge can be created, it would take a long list of rules, it would decrease the diversity and fun of the challenges, and it would be an imperfect system because people would continue to find loopholes that would have to be patched up.
Nice one haha 
I'm maybe gonna do one or two scores