It's veering off the point a bit, but how reliable is PH110 as an indicator of T(xT1)? FTDNA has the Iraqi 534029 as PH110+ and T1-L206+
What data do we have on the Bhutan sample, and how do we know it is not T1+ like 534029?
As far as I can see, we only have 3 T(xT1) confirmed modern samples (in Armenia, Georgia and Germany) that all branch away from each other at a similar 2,000 BC date, setting their MRCA's most likely 2,000 BC origin point in the Western Caucasus. The only other confirmed T(xT1) is the Varna king 4,500 BC with its Natufian autosomals.
Based on the very limited data that we have, T(xT1) looks most likely West Asian to me, as you would expect of a haplogroup whose other basal branch also coalesces to West Asia.