Probably because before there used to be people who would rate these novels 1 star all the time which hurt translator confidence (even if they knew what was going on). Since, Tony has cleared those up so that helped spur some confidence thus resulted in a boom of translations.
Moral of the story, don't 1 star things just because it happens to offend you because it harms the community at large. Don't want to see it? Then just filter those tags from your release page.