Hooks called after installation profile is installed?
Move your post-installation hooks to a module/part-of-your-profile (that can implement any hook and move things around even after the system modules is installed).

That way you can overcome problems like custom block&#39;s BLOCK_VISIBILITY_LISTED not working on profile installation hook_install()?, and have a solid last installation step, that makes all your final configs.

bonus * why not even choose or make configs in that installation step's form_alter() ;)