Shedlock is a bit of a crank of a financial advisor whose clients have missed out on the decade-long stock market boom since 2008. Everyone has a particular bias in terms of the information he chooses to process. Shedlock chose only the bits that were irrelevant to making money in the financial markets.
The two crashes were not pilot error. Why would a 737 pilot have expected a 737-800 to have such a problem?
Sorry, but this debacle is the sum of a cascade of errors on the part of Boeing.