I literally just found out about this 10 minutes ago and got 9/9 on my first game. I've realized now the real goal of this game is to pick Pokémon that apply to each category but to pick ones you think the least amount of people playing have picked. The lower the percentages your picks are, the lower your uniqueness rank is by the end (it's like golf) and I think that aspect can be really fun. At the same time, people might have the same idea and a seemingly forgettable Pokémon might be picked by a lot of people. Either way, this is very fun and I can see myself playing it everyday for a while.

Edit: Honestly only played this for a week and forgot about it, still a fun time tho