The most convincing explanation to me has always been that they are vodka martinis, not gin, so the whole 'bruised' thing is moot. They do touch on this in the video.
As for thug, it depends when in the development of the character he orders it. Earlier on yes, but he does become more sophisticated. Really though, as the video does show, this drink was a very small thing in the books, but caught on in the films, where Bond definitely isn't meant to be a thug.