There is not really a need for a glitchless category because not many people would run it and even in the full-game leaderboards there is no glitchless category and and any% is a much more frequently ran category, but it would be really cool for you or anyone to have a more optimal time without glitches so as long as your having fun you can do your own glitchless runs.

and also I forgot to mention but we've had issues before about what is a glitch and what is not a glitch and that would be a whole other problem and it is another reason why it is not a category.
Thank you for asking about it though

I won’t volunteer to be super mod but if it has to be done it has to be done