The devs have recently been updating the game, making it almost impossible to wr any cagetory. I think the leaderboards for affected modes should be reset.

Hi buddy! Thanks for your concern. There was actually a major update back last summer that added tasks and change many of the routes for the game. Some changed for the better while others changed for the worse. Because of that, it was decided that players would be allowed to downgrade to older versions if that made the route faster in those categories. Because that ruling was allowed, we did not feel the need to reset the categories and lose some really great runs from before.

I hope that helped answer your question.