Also how is 'less than 1/5th' the same and proving you right when even your quote portraying doom and gloom only - only suggests that it is between 1/4th and 1/3rd...?

That is some bogus math, even if I accept that the game is missing 2/3rds of 'a game'. Which it clearly isn't.
There are some 'marketing hype' and 'window dressing' features which are missing, some core functions (police reaction) which are underdeveloped... but the 80 odd hours of content are more than obviously enjoyable to many, and the current, 'soon after release' condition is like "Mafia on Steroids" or "Deus Ex on Steroids", neither of which are a fundamental condemnation.