There is also lots of Node software running in environments where downtime is unacceptable. And having uncontrolled dependency churn is a great way to break you

There is also lots of Node software running in environments where downtime is unacceptable. And having uncontrolled dependency churn is a great way to break your CI and demoralize your team. I know I've spent way more time than I care to admit debugging failures in test and production because for some reason there was no subdependency freeze. It's the kind of problem that makes you very frustrated. This discussion is based on a false dichotomy. Yes, shops can be bad at updating dependencies. That's a matter of culture. Technically, I shouldn't have to constantly scan my dependencies for updates, much less security updates. That's what CVEs and release notes are for. Not freezing the dependency tree in CI and production on account of security updates is a bad pattern.