I definitely noticed some buzz at that RPM...but the Tenere is known for a bit of that as well...
My personal take is that no motorcycle is without it. Just me...I did some "princess and the pea" poking of guys that complained about the Tenere's buzz, I really never notice those things.
DL buzz at 4k+? Yes. Noteworthy? No. To me, totally normal.
I am replacing the bars so that my hands aren't canted, and when my hands get sleepy I change my grip...I know more stating the obvious, but just my take on both bikes.
If you've the money and the place to ride it, get the Tenere, stepping out the rear wheel in TCS Mode 2 by itself is worth the price of admission. Made me feel like a superstar, which I'm not.
The Strom, I feel happy with it because I have that "poor kid" reflex where when I have something really expensive I feel guilty about it.