Thank you for watching! What we meant by standardization is that the platform operators and buildpack authors have control over what is allowed to be done. E.g: A company's security policy might be that: only a base image that has gone through the security team's vetting has to be used for all applications. This is easily achievable by enforcing it through buildpacks. The burden of updating such base images is also now passed to the platform operator and not the app developer.
Maintenance was also from the perspective of platform operators: Since buildpacks and builders are versioned and trackable with a version control system, there is scope to easily maintain multiple versions and variants.