In MNG-1725, Jason indicated this was the plan for Maven 3.x. I didn't see an existing issue and from what I can tell it hasn't been implemented yet, so creating an issue to track it.
Use SLF4J for logging
Maven needs to support multiple logging levels
Find a reusable/consistent way to insulate Mojos from 'does not implement Log' in commons-logging
Investigate if MavenEmbedderLogger can be replaced by ...plugin.logging.Log