Seems likely, given that with string instruments accurate pitch requires proper attention.. and all wind instruments have a very ongoing need to focus on the sound in relation to the embouchure to produce a good tone. Its at a contrast to us pianists with our small and "snap shot" window for controlling the tone of the instrument.
It is also remarkably easy to highlight (exaggerate perhaps) certain tonal/rhythmic characteristics of a line vocally - In a way that is obvious to the less experienced who has more trouble discerning the difference in how the idea is conceived if demonstrated at the piano.
eg.
4/4 (semiquavers) - yya, ta, ta, ta - ta, ta, yya, ta - ta, ta, yya, ta - ta, ta, ta, ta.
will generate a remarkably different sound, and is obviously a very differently conceived idea to..
la-ah-ah-ah-eeeee-ah-ah-ah, da.. Dum. da-DA.
..even as text this can be understood, when used with an aural example most people can concieve and copy this kind of thing vocally without to much trouble, and then apply that idea to the piano. If you just do it at the piano they can in the earlier stages tell there is a difference, but they can't quite grasp what it is or how to produce it without more work/thought.