New Ixchel's Torment strongbox extremely disappointing rewards

Just got excited that I stumbled into one of the new Unique strongboxes during the campaign, took something around 8 minutes to complete the waves (using spear)...and the drop was 2 items, a white bow and a blue quiver.

I gotta say, I'm usually shilling for this game, but to say that was disappointing, especially after how long it took to complete and how dangerous it was, would be an understatement. It didn't even drop according to what it says on the box!