Architects likely do not have a choice. These things are driven by auditors and requirements for things like insurance or PCI and it’s expensive to protest those. I know people who’ve gone full serverless just to lop off the branches of the audit tree about general purpose server operating systems, and now I’m wondering whether anyone is thinking about iOS/ChromeOS for the same reason.

The more successful path here is probably demanding proof of a decent SDLC, use of memory-safe languages, etc. in contract language.