You asked if it was mandatory to implement this in the kernel because Linux is a monolith. I pointed out that FUSE exists, and allows filesystems to be in users

You asked if it was mandatory to implement this in the kernel because Linux is a monolith. I pointed out that FUSE exists, and allows filesystems to be in userspace. I answered your question. As to some of the silly decisions made by this project? I can't speak to that.