Hardened base images don't restrict what you add on top of them. That's where scanners like Docker Scout, Trivy, Grype, and more come in to review the complete image that you have built.
The difference is that they’re charging extra for it, so people want to see benefits they could take to their management to justify the extra cost. The NPM stuff has a lot of people’s attention right now so it’s natural to ask whether something would have blocked what your CISO is probably asking about since you have an unlimited number of possible security purchase options. One of the Docker employees mentioned one relevant feature: https://socket.dev/blog/socket-firewall-now-available-in-doc...
Update the analogy to “like EC2 but we handle the base OS patching and container runtime” and you have Fargate.