Developers who disclaim responsibility, or show no interest in, how their software is scaled, securely locked down, deployed or monitored are probably not that great. Or, perhaps, they simply haven't been humbled yet by a bad incident, miscommunication, or a complete lack of understanding of how real life works.
I worked with a Microservices Architect (and developer) once, and when I asked how he intended for failures to cascade properly between services; how he would maintain cohesive state, especially if things went wrong; and how he would diagnose problems between them, he confidently told me: "That is for devops to work out."
Back in the day of desktop apps, the people who showed no interest in how their software was installed on desktop computers were more or less the same ones that are now disinterested in operations, deployment, etc.