The dose makes the poison; we're still a long way from fulling embracing microkernels and capabilities. Security is a holistic property and encompasses finer details too. I want a small TCB. I want capabilities pervasively. And in pursuit of modularity and abstraction, I want to be able to choose the components I want and take those burdens myself. It's a bit silly seeing the nth SIGOPS-SOSP paper on how Linux can be improved by integrating userspace scheduling.