I've been talking with Gave2Haze, the guy who set up the leaderboards and also created the Deathless category when the leaderboards started in February 2017. He's okay with the category being closed and he didn't know there were necessary deaths when he made it. I was the only other runner up until now and I'm fine with closing the category. The reason is at a top level it would be the same as Any% as the optimal strategies for Any% is under the game's necessary amount of deaths (24). What I think I will do is archive it soon (like the IGT subcategory) and in its place I can make a minimum deaths challenge spreadsheet. We could add more challenges to it and side categories in the future.

Everybody in the 5b Discord seems to agree with closing it. The only two runners of it so far (me and AntLadders) agree and so does the category's creator, Gave2Haze.

Deathless has now been archived and replaced with the BFDIA 5b challenges spreadsheet, with Any% Least Deaths and 100% Least Deaths. Find more info and the links to the spreadsheet and submission form on this thread: https://www.speedrun.com/bfdia/thread/op8k4