Heroku's defining characteristic has always been that it radically reduces the sysadmin surface area of my app stack to something I can reasonably handle. So, w

Heroku's defining characteristic has always been that it radically reduces the sysadmin surface area of my app stack to something I can reasonably handle. So, while things like Dokku, etc. are really interesting they don't seem to be actually expanding the number of app-stack layers that I'd need to know to properly secure and maintain a server. Am I missing something?