Hey, this isn't really a new idea, blender mode came out July 2021 and we polled the community on this, but eventually the mods decided to leave it out of the boards since the optimal combination of modes at the top will be the same and quite stale.
You can join the discord and see this addressed in #faq with the following answer: There are too many possible category combinations to keep track of them all. Adding a "general any%" blender mode category will just result in optimizations similar to death%, making it pointless again. Combining :peaceful: 🧀 :yinyang: :portal: :winged: :small: :5 apples: can be as optimized as 0:00.000 given enough grinding. Even if it's "rare" to get, all that's done is resetting and clicking any direction key once, it's not a real speedrun.
The mod team are happy to announce that all slow runs have officially been moved from Category Extensions to the Base Game, meaning if you want to submit a slow speed run, you'll now need to submit to the Base Game, not Category Extensions.
We'd like to give a HUGE thanks to Maximum from the Red Ba