In the aeronautical industry, we have this saying "If it looks ugly, it flies ugly" which has proven out in that aerodynamic design needs certain sleek lines and cobbled together garbage just doesn't have what it takes.
Same goes for the building industry. Despite the cosmetics of Stucco and the willingness to absolve the builder because it "doesn't look pretty", if a non-load-bearing wall is this foul, you can be certain that little or even less care was taken on the structural elements of the building.
This is why a 6.5 earthquake in a country with strict building standards can be fairly annoying but in another with unreinforced masonry and no standards, ends up killing 30,000-40,000 people, both areas having the same population density.
Poorly designed, non-loadbearing walls will just shear off the building and fall into the street in a quake.