The problem is there is no proper power and torque distribution because of their DMO AWD setup. The driveshaft is not connected to the rear wheels so all the rear wheel power comes from the rear motor which apparently isn't powerful enough despite being almost 200 hp.
GWM has a much better PHEV setup with their Hi4-T* system which just has a single motor in the transmission and connects the rear wheels with a driveshaft so it can offer three proper differential locks.
Downside vs the BYD Shark is that in the Hi4-T setup, the battery is in the trunk space so limited capacity at the back.
*They also have a new Hi4-Z system that also uses dual motors and places the battery in the floor like the BYD Shark. I have only seen it used in the 2025 Tank 500 PHEV so far and haven't seen any reviews about it's offroad performance like CarExpert did for the BYD Shark and GWM Canon Alpha. GWM does use much more powerful motors in their Hi4-Z system compared to BYD though so it might have just enough power at the rear despite being disconnected from the engine.