How have containers solved maintaining production systems? It's just moving the abstraction layer higher up the stack. Also, who will design and build securit

How have containers solved maintaining production systems? It's just moving the abstraction layer higher up the stack. Also, who will design and build security for these systems? Or care about low-level performance? A ton of dev's don't care about prod in my experience, and just want to ship shiny features. Containers and VM's are not very different from a deployment or maintance standpoint. The deployment strategies used with containers could be done with (lightweight) VM's a decade ago. (heck, jails have been used for nearly 25 years) Also, sysadmins have been automating stuff since forever. Without automation one inherently has a very unstable system.