I kinda agree with you...but like you said it's human nature to brag about something, it's also human nature to blame people for something that happened over 70 years ago. They just want to say they're opinion, they want people to know who they think is responsible for the sinking of Titanic.
I really can't find anyone to blame. It wasn't really anyone's fault, even though the sinking could have been predicted. Like the book written by the American writer, called "Titan". It practically GAVE the future away, if some people had actually paid attention to the book. And when Titanic was leaving port, the New York almost crashing into it was another hint. Those two hints were good enough to predict the sinking, but no one noticed them probably. They just thought nothing of them. And now..the Titanic lies at the bottom of the Atlantic.
Yet I still find no one to blame...except the iceberg..I blame the iceberg!