Like guys from EN team already said - peoples just do it without any reason. And not only public presets, even in events too (an example my past event Вакцина SCN9A which one got negative rating).
You just don't need to take it so close to your heart. I always use green rating with comments on events/presets just to make creator lil happier.
Why do you even bother with trivial things such as rating , if your deck works , who cares who has ,
or does everything in this game has to be a popularity contest , feel like in highschool again
but tbh that preset you linked isn't half that bad just learn how to hyperlink it