Of the 15 books when you include the extended list, four are by men and have dead/dying girls in important roles.
4 books on YA NYT top 10 are by John Green. 2 more are books that have editions with a John Green blurb on cover.
Any NZ writers/small presses looking for people to review YA? I have a few people who'd be willing to do so (especially if it's Maori YA)