I have come across a few software programming errors in my time, and in general my thinking tends to be along the lines of, "The man that never made a mistake never MADE anything" but when aircraft fall out of the sky killing hundreds of folk and more than once, seemingly related to digitised control systems, and perhaps creating a "We never thought of that" response...? It seems there has ever been a price to be paid for ..err.. progress..?
As a self confessed selective Luddite who drives a Tesla on occasion and delights in the simple technology of his carb fed Trad Morgan, my opinions must be suspect... ? (-:
The problem Boeing had was basically stretching the operational environment for which existing type approvals were originally tested, and the approvals given, with increasingly larger airframes without seeking further type approval. So whilst I have no problem with your "The man that never made a mistake never MADE anything" I would add a caution if they learnt from their mistakes.
