Animator: Mix of Humanoid and Generic clips does not give expected warning

1. What happened
5.1 Change - Animation: Mecanim: Human animation always have the highest priority
"...you should see a warning in the inspector if such case is detected with the name of the faulty animation clip and which transform is affected."

I did see the warning with other projects, but do understand why I don't get the warning with attached project and scene.

2. How we can reproduce it using the example you attached
Open Project
Open scene
Select Willard... character in Hierarchy view
... no warning for Humanoid to Generic clip transition.
open Animator and notice that I have a Humanoid clip transitioning to a Generic clip. The generic clip is ignored, as expected, but no warning about this on the Animator Component.