Could it be that your understanding of Toyota quality is based on millions and millions of dollars of marketing money spent each year. And then it turns out they are just like every other large global company.
Based on your reasoning, why don't all other automakers (all have large marketing budgets, GM spends even more than Toyota) have similar reps for quality?
Their software process wasn't given the same attention, and they've been burned by it. Embedded systems are really tricky, and a good process (design through end-of-life) is key.
It's not just marketing. I was in the manufacturing program of a large public university in Michigan, where you would expect all the staff to be heavily biased in favor of Detroit automakers, and the constant refrain was "Toyota, Toyota, lean manufacturing, six sigma, Toyota."
