Because frankly, Ronald (the current maintainer, not the original author) is very competent. I say this as somebody who has personally been yelled at by Ronald at a kernel summit; I didn’t deserve it, but none of his technical points were wrong. I like to think of myself as the kind of person that, given enough time and documentation, can maintain anything; I think it’d still take three of me to do Ronald’s job. (Well, “job.” I think he technically works for Red Hat or something?) Not to excuse his conduct, just to explain why he’s not been replaced yet.