Well in your opinion you now must agree the fundamental car design, tech team, and test venue hold a fair majority of the blame.
On Meeke 2nd crash at Argentina,
In a previous post, it told you to look at in car video wrc+. At 200kmh the front of the car was wandering from side to side, and he effectively understeer off the road. My opinion, that the rear wing was fitted incorrectly after the first crash, giving way too much downforce on the rear. It totally evident from the video if you care to look.