We’re moving past the days where we take an operating system off the shelf and plug things into it until it can serve our application and into the days of purpose built OSes that push software complexity into the realm of software engineers.
These two statements contradict each other.
On top of that, it isn't even anything exciting, per se. Special-purpose and tailored OS have been the norm for plenty of fields, though I suppose not web application deployment.
And of course, the obligatory false dichotomy about init systems:
Just because something like systemV has worked very well for 32 years doesn’t mean it should not be torn apart and re-invented.
"Full reliance on the init suite" should rise some alarms about fault tolerance, honestly. But I don't know.