Your software is the most important thing on a computer. Why are you wasting precious resources running anything else?
If your software is the most important thing, why would you run anything else on the computer? Ditch the OS. Shed your dependencies. Get the kernel out of the way.
If you're running anything, you're running it in the cloud. Kernel or no kernel, metal or no metal. It's going to be in the cloud. Everyone knows that, idiot.
Without a kernel, your software isn't impeded by any of the problems of common computers. Latency? Data locality? Cache misses? We don't even know what these mean anymore. That's how fucking awesome this is.
Without a kernel, your costs are so low, they're practically free. Not only does your code cost almost nothing to run, it will cost almost nothing to develop.