Sure optimizing for security makes sense, but Apple isn't just doing that. They're also removing ways to override those restrictions. Often old methods to disable them or to whitelist an app silently stop working. Sometimes new ones don't always work, or require an absurd number of hops.

It seems alongside security there appears to be a strong desire at Apple to make macos a walled garden like iOS devices. They've hamstrung mobile safari for years to ensure the app store doesn't have competition from web apps.