Just wanted to give props to BearZyo and the people organizing this.
I'm entering this for fun and for the experience, just like it says in the op. Nothing wrong with having high expectations and voicing criticism, but I think its important to keep in mind that the organizers are doing this for fun too, they don't owe us anything. We should try to make sure they're enjoying themselves as well so they're more likely to put on another tournament in the future. Best thing is to do as electricbullet9 says, if you think something could/should be done better and you have the time, help out.
I think the 10k-50k mappool is fine, but even if it was terrible I'd still say thanks for putting it together. Scheduling might be rough with so many matches and not many refs, but I'm sure if everyone stays chill it'll work out.
I've already had fun going through the map pool and thinking about it from a competitive viewpoint, its an aspect of osu I've never experienced before.
Keep it up!