Please do: "I was going to explain how some people think it can drive HE-6, and some people disagree. But never mind."
I will, if we see the original question ("Will the V200 drive the HE6?"), answer as follows - since the original questions omits any adjectives.
Will the V200 drive the HE-6 well - compared to other solutions? No. The V200 can´t compete with Mjolnir and dedicated stereo amps (Primare I32, Abrahamsen V2.0, Brio-R). However - it is not just W-output from the amp - it is so much more.
Q: Will the V200 drive the HE6?
A: Yes
Q: Will the V200 drive the HE6 - as good as a dedicated integrated stereo amp coupled to the speaker outputs?
A: No
Q: Will the V200 drive the HE6 to high volumes?
A: Yes
Q: Will the V200 drive the HE6 - and make the sound really engaging?
A: It depends on your source - but I would say that the Mjolnir / Gungnir comes very, very close to the stereo amp. So close in fact, that the Schiit stack is sufficient to any stereo amp