Well, technically pretty much as I told you right

...
During lunch time, and after the discussion on the barometric conditions, I was trying to think the Chinese way, and why they proposed to disconnect some sensors. I guess they proposed to disconnect the barometric sensor.
If we do so, I think the ECU will go into recovery mode for the signal, and falls back into a pre-set value.
If this pre-set value is higher then the actual pressure (which might be so for safety reasons - lean mixture is much more dangerous for an engine then a rich one), the ECU will add more fuel to the mixture.
This might stop the stalling.
Might be something we can further try.
It will lift the map a bit furhter up, and it might allow me to tune the throttle override a bit back, reducing the negative aspects of it.
Of course this might only work at sea level, drive to Sichuan and your bike will be flooded like an old caburator bike.