The brush strokes in Draw are like an Illustrator blob brush and it's currently not possible to get a simple/single path down the middle of the stroke... and I just don't know whether changing that drawing algorithm is even being considered at this point.
I know that redrawing the strokes in Illustrator CC, is an excruciatingly time-consuming process and I will pass your feedback along to the product team.
But the feature might be possible in Adobe Illustrator CC and it would be worth asking the same in Illustrator community.
Hi Just overdoing if this has been worked on at all in the last 2 years? The feature still seems to be missing.
Although it may change in the future, there are no current plans to change this drawing algorithm in Draw.