Oud Yaqub is one of my favourites, and holds a special place for me. Maybe because it was one of my first ouds. OY and Basic Kinam in fact are quite close in scent, to my beginner nose couldn't differentiate with wild, and I would even dare say (don't go mad everyone) that they have strong resemblance aspects of Kinam Rouge.
I remember I watched a video of the harvest of Oud Yaqoub, amazing ... There was a mention of future distillation from sister trees? I believe 60yo cultivated crassness. I wonder if BK was one of those distillations, or there are more goodies to come.
All of those 60-year-old trees you see in the Oud Yaqoub video were sold to a Chinese buyer the following year after our distillation. We had the farmer promise they'd save them for future projects with us, but I guess money spoke louder than words. Basic Kinam was from similar wood, harvested from much younger trees (20-30 years would be my best guess), distilled same style, sans soak.
Agarwood is in many respects like clay. The distiller is like a potter. Depending on the level of skill and know-how, he can shape that clay into whatever object he likes. A potter's skill will show no matter what type of clay he's working with, and a general 'signature' will imbue everything he touches.
When comparing oils from vastly different locales, whatever similarities in style you pick up are due to the potter's hands. Any differences are due to the clay he's working with. Taxonomy would classify both Thailand and Vietnam as predominantly crassna, so no variance there.
I can give you another way of looking at it. Take a thin layer of filo dough, lay it out, sprinkle it with crushed walnuts and pour some syrup on top. Now take fifty layers and layer them atop each-other, putting crushed walnuts and syrup on the works. In 2D they might look similar, and a bite might hint at a vague resemblance in flavor, but the depth and richness and nuancedness will surely be different when you bite into proper baklava.
That's how I'd compare Oud Yaqoub to Kinam Rouge. The parameters might have been similar (by accident, not design) but the repleteness of that redness of Rouge is layers above Yaqoub's 'techniqued' complexity and layeredness.
To me, Yaqoub is brownish, Basic Kinam greenish, Kinam Rouge reddish. That is highly subjective though, as all things olfactory, and I've seldom seen two people smell the same color save perhaps in Purple Kinam…