I think main problem is balance of templates. Current pool doesn't offer many good options, mirrors are used to be more balanced but i'm not sure about that 100%.
In my opinion making "quality tourmanent" for everyone is impossible but there is always a chance to make rng less important than players skill. Am i wrong if i say jebus, diamond or m200 are more about rng than 6lm10a or h3dm1? Making 3/5 "more random" templates as map pool isn't healthy for tournament.
I can be wrong, it's only my point of view. Coming SNG first time and i'm fine to spend a nice week in other way than "main event")