I understood it was a joke.It was a joke response, but based on fact. These are not the crap feedback reports you get on the internet based on random reporting. The Consumer Association in the UK "Which" has a proper ratings procedure based on their members reporting how often their cars went back for for repairs etc etc. Mercedes did badly in that too. I have had 3 Mercedes, including an upmarket cabriolet, and my own personal experience is that they are unreliable. Mercedes went down the reliability drain when they had their ill-fated merger with Chrysler, and decided their earlier legendary reliable models were over-engineered. My current Toyota is in a different league. "Which" is highly reliable and the reports are available in detail only to paid up subscribers, one of which I am, and I wouldn't pay for them and then pay more for a pinch of salt.
Besides, I fully agree with you...I also drive a Japanese car, (but no Coyota- sorry for that ) and I am fully satisfied. Often it comes down to innovation vs. reliability!