CP77 letdown unprecedented? Maybe in the duration for which it was hyped but not unprecedented. Anthem is just one example.
Several companies have preceded CDPR with arguably more 'malicious intend'.
Anthem didn't sell this many preorders, nobody was sued because of it, and no consumer rights agencies were involved in it. CP77 is unprecedented. No other game ever started such a multilevel debate on quality control, dishonesty and managerial malpractice in the industry - reaching legal and even political levels.
And even after all that you still have people like the op up here...