Had some big debates about this... not necessarily on tiered greens but on multi-contoured greens...
With too many different and smaller contours (which is often praised on GCA.com) comes a point where the strategic design intent becomes useless...
The average player is either, not able to "read" the shot to play, or execute the shot to play, or execute the drive that would lead him to play the "little_runner_coming_from_the_left_inside_using_the_small_swale_to_get_the_proper_kick" approach...
and the good player will not play it because it's easier for him to play a full 9-iron from 145yards.
That's what I loved about certain links course where most of the greens have a clear dominant contour feature (example: a tilt from right to left, or a false front) that most players can understand and play for, and here and there a little feature (a bump or a spine protecting a back pin) that add some interest for the better player.
But if a green has a false front, a swale, 2 internal bumps, 2 spine coming from the sides and a tier, at some point, players would aim:
A) for the flag because why aim at a 10feet circle elsewhere
B) aim for the middle of the green