Once you go life or death situations, regulatory environment applies, backward compatability matters, ... Everything takes endless. It is not code, commit, test and deploy. Intake, Risk Analysis, project planning, approvals, alignments, etc. So many more processes. We should not fool ourselves that other platforms are better in that once you go for serious SLAs. Linux Kernel or user land patch might be fast, but RedHat delivery will take longer.
Welcome to Enterprise development.
When enterprise just falls on its face, I don't have much sympathy. "So many more processes" sounds like taking a handful of steps, splitting them up, and making each one require multiple days of memos back and forth. Can you provide any justification for this? Am I misreading?
That is assuming whoever you are replying to is foreign to enterprises.