I don’t think touring plans room finder is the be-all, end-all in terms of getting room categories correct, especially with the Pool/Marina category new for 2018.
It shows all rooms on north side of Rarotonga in the category, yet it is highly unlikely that every single one of those rooms has a view of the Oasis pool. In my opinion, i think they are over generalizing, and some of those rooms would still be garden view, because you would not be able to see the pool from some of them. Some yes, some no.
Again, this is just my opinion. I do not know what rooms Disney has designated for this new category. It would be nice if people who book them could post where they ended up staying on the Polynesian info thread to include that info on the first page as a helpful reference since this category is so new.