How is that representitive of 14-15-16? Most of the time, the car was on the leash.
It represented the real misery of this era:
Cars driving at <90% to conserve xyz. (replace xyz by fuel, tyres or PU life/reliability as you prefer).
And with a Merc that has a pace potential >>1s faster than the rest, limited over a race distance only by xyz.
Although I have to admit this whole conserving stuff has become less drastic over time. At least the teams manage to hide it slightly better nowadays...