I definitely agree that as any small start-up grows, the security controls become very painful, especially for those folks who felt "the freedom" before the controls were established. That said, would the picture look better without platform teams? The security controls would need to be there anyway, and I'd personally prefer to use some self-serve, platform-ish solution built by a team of software engineers that would do call auditing, verification, etc., rather than raising a JIRA ticket with some ops folks who'd do the security-sensitive thing for you.