American coverage of the Concorde has to try and make out that it was technically bad, otherwise they would have to face up to the fact that their country squashed the possibility of supersonic travel, through political bullying and protectionism of their own aircraft industry
Though, given the investment into the Concorde led to Airbus and all of their planes, disrupting Boeings dominance of that industry, I think they might have gotten the last laugh.
And also through supersonic travel being annoying as hell and super expensive.